23012263431 has 16 divisors (see below), whose sum is σ = 34885086720. Its totient is φ = 14984728920.

The previous prime is 23012263427. The next prime is 23012263441. The reversal of 23012263431 is 13436221032.

23012263431 is a `hidden beast` number, since 2 + 3 + 0 + 1 + 22 + 634 + 3 + 1 = 666.

It is not a de Polignac number, because 23012263431 - 2² = 23012263427 is a prime.

It is a super-2 number, since 2×23012263431² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 23012263395 and 23012263404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012263411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9909375 + ... + 9911696.

It is an arithmetic number, because the mean of its divisors is an integer number (2180317920).

Almost surely, 2^23012263431 is an apocalyptic number.

23012263431 is a deficient number, since it is larger than the sum of its proper divisors (11872823289).

23012263431 is a wasteful number, since it uses less digits than its factorization.

23012263431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19821123 (or 19821117 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 23012263431 its reverse (13436221032), we get a palindrome (36448484463).

The spelling of 23012263431 in words is "twenty-three billion, twelve million, two hundred sixty-three thousand, four hundred thirty-one".