23113031022 has 56 divisors (see below), whose sum is σ = 52150868616. Its totient is φ = 7679099376.

The previous prime is 23113030987. The next prime is 23113031041. The reversal of 23113031022 is 22013031132.

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 = 23113030986 and 23113031004.

It is a congruent number.

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 421788 + ... + 473424.

It is an arithmetic number, because the mean of its divisors is an integer number (931265511).

Almost surely, 2^23113031022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23113031022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26075434308).

23113031022 is an abundant number, since it is smaller than the sum of its proper divisors (29037837594).

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

23113031022 is an equidigital number, since it uses as much as digits as its factorization.

23113031022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51964 (or 51949 counting only the distinct ones).

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

Adding to 23113031022 its reverse (22013031132), we get a palindrome (45126062154).

It can be divided in two parts, 2311303 and 1022, that added together give a triangular number (2312325 = T₂₁₅₀).

The spelling of 23113031022 in words is "twenty-three billion, one hundred thirteen million, thirty-one thousand, twenty-two".