23133321020 has 12 divisors (see below), whose sum is σ = 48579974184. Its totient is φ = 9253328400.

The previous prime is 23133321019. The next prime is 23133321061. The reversal of 23133321020 is 2012333132.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 1156666051 = 23133321020 / (2 + 3 + 1 + 3 + 3 + 3 + 2 + 1 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 23133320983 and 23133321001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578333006 + ... + 578333045.

It is an arithmetic number, because the mean of its divisors is an integer number (4048331182).

Almost surely, 2^23133321020 is an apocalyptic number.

23133321020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23133321020 is an abundant number, since it is smaller than the sum of its proper divisors (25446653164).

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

23133321020 is a wasteful number, since it uses less digits than its factorization.

23133321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156666060 (or 1156666058 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23133321020 its reverse (2012333132), we get a palindrome (25145654152).

The spelling of 23133321020 in words is "twenty-three billion, one hundred thirty-three million, three hundred twenty-one thousand, twenty".