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23031301133 = 71324384523
BaseRepresentation
bin10101011100110001…
…011100010000001101
32012110002110022200002
4111130301130100031
5334132003114013
614325212414045
71443510554351
oct253461342015
965402408602
1023031301133
119849629475
124569177325
1322306cb449
141186b19461
158ebe44358
hex55cc5c40d

23031301133 has 4 divisors (see below), whose sum is σ = 23355685728. Its totient is φ = 22706916540.

The previous prime is 23031301063. The next prime is 23031301201. The reversal of 23031301133 is 33110313032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23031301133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031301333) 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, 162192191 + ... + 162192332.

It is an arithmetic number, because the mean of its divisors is an integer number (5838921432).

Almost surely, 223031301133 is an apocalyptic number.

It is an amenable number.

23031301133 is a deficient number, since it is larger than the sum of its proper divisors (324384595).

23031301133 is an equidigital number, since it uses as much as digits as its factorization.

23031301133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324384594.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 23031301133 its reverse (33110313032), we get a palindrome (56141614165).

The spelling of 23031301133 in words is "twenty-three billion, thirty-one million, three hundred one thousand, one hundred thirty-three".

Divisors: 1 71 324384523 23031301133