23112020 has 12 divisors (see below), whose sum is σ = 48535284. Its totient is φ = 9244800.

The previous prime is 23112007. The next prime is 23112029. The reversal of 23112020 is 2021132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11916304 + 11195716 = 3452^2 + 3346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23111992 and 23112010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112029) 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, 577781 + ... + 577820.

It is an arithmetic number, because the mean of its divisors is an integer number (4044607).

Almost surely, 2^23112020 is an apocalyptic number.

23112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23112020 is an abundant number, since it is smaller than the sum of its proper divisors (25423264).

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

23112020 is a wasteful number, since it uses less digits than its factorization.

23112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155610 (or 1155608 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23112020 is about 4807.4962298477. The cubic root of 23112020 is about 284.8476460758.

Adding to 23112020 its reverse (2021132), we get a palindrome (25133152).

The spelling of 23112020 in words is "twenty-three million, one hundred twelve thousand, twenty".