23243051531 has 8 divisors (see below), whose sum is σ = 26565337344. Its totient is φ = 19921228200.

The previous prime is 23243051521. The next prime is 23243051537. The reversal of 23243051531 is 13515034232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23243051531 - 2¹⁰ = 23243050507 is a prime.

It is a super-2 number, since 2×23243051531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23243051494 and 23243051503.

It is not an unprimeable number, because it can be changed into a prime (23243051537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 215606.

It is an arithmetic number, because the mean of its divisors is an integer number (3320667168).

Almost surely, 2^23243051531 is an apocalyptic number.

23243051531 is a deficient number, since it is larger than the sum of its proper divisors (3322285813).

23243051531 is a wasteful number, since it uses less digits than its factorization.

23243051531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231241.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 23243051531 its reverse (13515034232), we get a palindrome (36758085763).

The spelling of 23243051531 in words is "twenty-three billion, two hundred forty-three million, fifty-one thousand, five hundred thirty-one".