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231103131333301 = 1132045160454277
BaseRepresentation
bin110100100010111111100100…
…000011001011001010110101
31010022021020120120112210112201
4310202333210003023022311
5220242343203110131201
62135303151325344501
766451436014440133
oct6442774403131265
91108236516483481
10231103131333301
1167700318878457
1221b05403108131
139bc4c16152226
14410d6462aa753
151bab7c96a1801
hexd22fe40cb2b5

231103131333301 has 4 divisors (see below), whose sum is σ = 233148291787692. Its totient is φ = 229057970878912.

The previous prime is 231103131333293. The next prime is 231103131333343. The reversal of 231103131333301 is 103333131301132.

231103131333301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118433376944100 + 112669754389201 = 10882710^2 + 10614601^2 .

It is a cyclic number.

It is not a de Polignac number, because 231103131333301 - 23 = 231103131333293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231103131333301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231103131333101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022580227026 + ... + 1022580227251.

It is an arithmetic number, because the mean of its divisors is an integer number (58287072946923).

Almost surely, 2231103131333301 is an apocalyptic number.

It is an amenable number.

231103131333301 is a deficient number, since it is larger than the sum of its proper divisors (2045160454391).

231103131333301 is a wasteful number, since it uses less digits than its factorization.

231103131333301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045160454390.

The product of its (nonzero) digits is 4374, while the sum is 28.

Adding to 231103131333301 its reverse (103333131301132), we get a palindrome (334436262634433).

The spelling of 231103131333301 in words is "two hundred thirty-one trillion, one hundred three billion, one hundred thirty-one million, three hundred thirty-three thousand, three hundred one".

Divisors: 1 113 2045160454277 231103131333301