23351534513 has 4 divisors (see below), whose sum is σ = 23473794048. Its totient is φ = 23229274980.

The previous prime is 23351534467. The next prime is 23351534533. The reversal of 23351534513 is 31543515332.

It is a happy number.

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 not a de Polignac number, because 23351534513 - 2³⁰ = 22277792689 is a prime.

It is a super-2 number, since 2×23351534513² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23351534533) 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, 61129481 + ... + 61129862.

It is an arithmetic number, because the mean of its divisors is an integer number (5868448512).

Almost surely, 2^23351534513 is an apocalyptic number.

It is an amenable number.

23351534513 is a deficient number, since it is larger than the sum of its proper divisors (122259535).

23351534513 is a wasteful number, since it uses less digits than its factorization.

23351534513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122259534.

The product of its digits is 81000, while the sum is 35.

The spelling of 23351534513 in words is "twenty-three billion, three hundred fifty-one million, five hundred thirty-four thousand, five hundred thirteen".