23133012020 has 24 divisors (see below), whose sum is σ = 49080147144. Its totient is φ = 9157810176.

The previous prime is 23133011971. The next prime is 23133012103. The reversal of 23133012020 is 2021033132.

It can be written as a sum of positive squares in 4 ways, for example, as 9138595216 + 13994416804 = 95596^2 + 118298^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23133012020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5960177 + ... + 5964056.

It is an arithmetic number, because the mean of its divisors is an integer number (2045006131).

Almost surely, 2^23133012020 is an apocalyptic number.

23133012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133012020 is an abundant number, since it is smaller than the sum of its proper divisors (25947135124).

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

23133012020 is a wasteful number, since it uses less digits than its factorization.

23133012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11924339 (or 11924337 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23133012020 its reverse (2021033132), we get a palindrome (25154045152).

The spelling of 23133012020 in words is "twenty-three billion, one hundred thirty-three million, twelve thousand, twenty".