2313133221020 has 72 divisors (see below), whose sum is σ = 5166848092560. Its totient is φ = 869692538880.

The previous prime is 2313133221017. The next prime is 2313133221029. The reversal of 2313133221020 is 201223313132.

2313133221020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313133221029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4184615 + ... + 4705025.

Almost surely, 2^{2313133221020} is an apocalyptic number.

2313133221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2313133221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2583424046280).

2313133221020 is an abundant number, since it is smaller than the sum of its proper divisors (2853714871540).

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

2313133221020 is a wasteful number, since it uses less digits than its factorization.

2313133221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521223 (or 521204 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2313133221020 its reverse (201223313132), we get a palindrome (2514356534152).

The spelling of 2313133221020 in words is "two trillion, three hundred thirteen billion, one hundred thirty-three million, two hundred twenty-one thousand, twenty".