23130221031 has 64 divisors (see below), whose sum is σ = 35721354240. Its totient is φ = 14781191040.

The previous prime is 23130221027. The next prime is 23130221087. The reversal of 23130221031 is 13012203132.

It is not a de Polignac number, because 23130221031 - 2² = 23130221027 is a prime.

It is a super-2 number, since 2×23130221031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23130220995 and 23130221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22832881 + ... + 22833893.

It is an arithmetic number, because the mean of its divisors is an integer number (558146160).

Almost surely, 2^23130221031 is an apocalyptic number.

23130221031 is a deficient number, since it is larger than the sum of its proper divisors (12591133209).

23130221031 is a wasteful number, since it uses less digits than its factorization.

23130221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1407 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23130221031 its reverse (13012203132), we get a palindrome (36142424163).

The spelling of 23130221031 in words is "twenty-three billion, one hundred thirty million, two hundred twenty-one thousand, thirty-one".