23145819631 has 16 divisors (see below), whose sum is σ = 25538480928. Its totient is φ = 20801872000.

The previous prime is 23145819629. The next prime is 23145819637. The reversal of 23145819631 is 13691854132.

It is a cyclic number.

It is not a de Polignac number, because 23145819631 - 2¹ = 23145819629 is a prime.

It is a super-2 number, since 2×23145819631² (a number of 22 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 (23145819637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736761 + ... + 767533.

It is an arithmetic number, because the mean of its divisors is an integer number (1596155058).

Almost surely, 2^23145819631 is an apocalyptic number.

23145819631 is a deficient number, since it is larger than the sum of its proper divisors (2392661297).

23145819631 is a wasteful number, since it uses less digits than its factorization.

23145819631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31562.

The product of its digits is 155520, while the sum is 43.

The spelling of 23145819631 in words is "twenty-three billion, one hundred forty-five million, eight hundred nineteen thousand, six hundred thirty-one".