22431104031 has 16 divisors (see below), whose sum is σ = 35283335168. Its totient is φ = 12404296800.

The previous prime is 22431104029. The next prime is 22431104057. The reversal of 22431104031 is 13040113422.

It is not a de Polignac number, because 22431104031 - 2¹ = 22431104029 is a prime.

It is a super-2 number, since 2×22431104031² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22431103989 and 22431104007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431104081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17227540 + ... + 17228841.

It is an arithmetic number, because the mean of its divisors is an integer number (2205208448).

Almost surely, 2^22431104031 is an apocalyptic number.

22431104031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22431104031 is a deficient number, since it is larger than the sum of its proper divisors (12852231137).

22431104031 is a wasteful number, since it uses less digits than its factorization.

22431104031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34456422.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22431104031 its reverse (13040113422), we get a palindrome (35471217453).

The spelling of 22431104031 in words is "twenty-two billion, four hundred thirty-one million, one hundred four thousand, thirty-one".