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230201231231 = 780072951033
BaseRepresentation
bin1101011001100100010…
…0000000011101111111
3211000012010020012020002
43112121010000131333
512232423003344411
6253430351144515
722426413115556
oct3263104003577
9730163205202
10230201231231
118969a659234
1238745b1513b
13189282acaba
14b1db14cd9d
155ec4a9c33b
hex359910077f

230201231231 has 4 divisors (see below), whose sum is σ = 230204260272. Its totient is φ = 230198202192.

The previous prime is 230201231219. The next prime is 230201231243. The reversal of 230201231231 is 132132102032.

230201231231 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 is an interprime number because it is at equal distance from previous prime (230201231219) and next prime (230201231243).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230201231231 is a prime.

It is a super-2 number, since 2×2302012312312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230201231201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397510 + ... + 1553523.

It is an arithmetic number, because the mean of its divisors is an integer number (57551065068).

Almost surely, 2230201231231 is an apocalyptic number.

230201231231 is a deficient number, since it is larger than the sum of its proper divisors (3029041).

230201231231 is an equidigital number, since it uses as much as digits as its factorization.

230201231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029040.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230201231231 its reverse (132132102032), we get a palindrome (362333333263).

The spelling of 230201231231 in words is "two hundred thirty billion, two hundred one million, two hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 78007 2951033 230201231231