23071234621531 has 32 divisors (see below), whose sum is σ = 24312947662080. Its totient is φ = 21866624179200.

The previous prime is 23071234621493. The next prime is 23071234621537. The reversal of 23071234621531 is 13512643217032.

It is a cyclic number.

It is not a de Polignac number, because 23071234621531 - 2¹⁷ = 23071234490459 is a prime.

It is a super-2 number, since 2×23071234621531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23071234621537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1410127791 + ... + 1410144151.

It is an arithmetic number, because the mean of its divisors is an integer number (759779614440).

Almost surely, 2^{23071234621531} is an apocalyptic number.

23071234621531 is a deficient number, since it is larger than the sum of its proper divisors (1241713040549).

23071234621531 is a wasteful number, since it uses less digits than its factorization.

23071234621531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20215.

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 23071234621531 its reverse (13512643217032), we get a palindrome (36583877838563).

The spelling of 23071234621531 in words is "twenty-three trillion, seventy-one billion, two hundred thirty-four million, six hundred twenty-one thousand, five hundred thirty-one".