23131023030 has 96 divisors (see below), whose sum is σ = 60817955328. Its totient is φ = 6098976000.

The previous prime is 23131023011. The next prime is 23131023037. The reversal of 23131023030 is 3032013132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23131022994 and 23131023012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131023037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9879660 + ... + 9882000.

It is an arithmetic number, because the mean of its divisors is an integer number (633520368).

Almost surely, 2^23131023030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23131023030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30408977664).

23131023030 is an abundant number, since it is smaller than the sum of its proper divisors (37686932298).

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

23131023030 is a wasteful number, since it uses less digits than its factorization.

23131023030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542 (or 3539 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 23131023030 its reverse (3032013132), we get a palindrome (26163036162).

It can be divided in two parts, 2313102 and 3030, that added together give a palindrome (2316132).

The spelling of 23131023030 in words is "twenty-three billion, one hundred thirty-one million, twenty-three thousand, thirty".