23021113120 has 24 divisors (see below), whose sum is σ = 54387380124. Its totient is φ = 9208445184.

The previous prime is 23021113067. The next prime is 23021113121. The reversal of 23021113120 is 2131112032.

It can be written as a sum of positive squares in 2 ways, for example, as 20901063184 + 2120049936 = 144572^2 + 46044^2 .

It is a super-2 number, since 2×23021113120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23021113094 and 23021113103.

It is not an unprimeable number, because it can be changed into a prime (23021113121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71940819 + ... + 71941138.

Almost surely, 2^23021113120 is an apocalyptic number.

23021113120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23021113120 is an abundant number, since it is smaller than the sum of its proper divisors (31366267004).

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

23021113120 is a wasteful number, since it uses less digits than its factorization.

23021113120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143881972 (or 143881964 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23021113120 its reverse (2131112032), we get a palindrome (25152225152).

The spelling of 23021113120 in words is "twenty-three billion, twenty-one million, one hundred thirteen thousand, one hundred twenty".