23131012231030 has 64 divisors (see below), whose sum is σ = 47833915633920. Its totient is φ = 7964837481600.

The previous prime is 23131012230971. The next prime is 23131012231037. The reversal of 23131012231030 is 3013221013132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23131012230992 and 23131012231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131012231037) 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, 1857012 + ... + 7050568.

It is an arithmetic number, because the mean of its divisors is an integer number (747404931780).

Almost surely, 2^{23131012231030} is an apocalyptic number.

23131012231030 is an abundant number, since it is smaller than the sum of its proper divisors (24702903402890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131012231030 is a wasteful number, since it uses less digits than its factorization.

23131012231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195725.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 23131012231030 its reverse (3013221013132), we get a palindrome (26144233244162).

The spelling of 23131012231030 in words is "twenty-three trillion, one hundred thirty-one billion, twelve million, two hundred thirty-one thousand, thirty".