23155321024 has 112 divisors (see below), whose sum is σ = 52445594880. Its totient is φ = 10040560640.

The previous prime is 23155320961. The next prime is 23155321037. The reversal of 23155321024 is 42012355132.

It is a junction number, because it is equal to n+sod(n) for n = 23155320983 and 23155321001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6782742 + ... + 6786154.

It is an arithmetic number, because the mean of its divisors is an integer number (468264240).

Almost surely, 2^23155321024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23155321024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26222797440).

23155321024 is an abundant number, since it is smaller than the sum of its proper divisors (29290273856).

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

23155321024 is a wasteful number, since it uses less digits than its factorization.

23155321024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878 (or 3868 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 23155321024 its reverse (42012355132), we get a palindrome (65167676156).

The spelling of 23155321024 in words is "twenty-three billion, one hundred fifty-five million, three hundred twenty-one thousand, twenty-four".