21310011202120 has 64 divisors (see below), whose sum is σ = 48346731014400. Its totient is φ = 8453296938240.

The previous prime is 21310011202061. The next prime is 21310011202153. The reversal of 21310011202120 is 2120211001312.

It is a junction number, because it is equal to n+sod(n) for n = 21310011202094 and 21310011202103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500244 + ... + 6698563.

It is an arithmetic number, because the mean of its divisors is an integer number (755417672100).

Almost surely, 2^{21310011202120} is an apocalyptic number.

21310011202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21310011202120 is an abundant number, since it is smaller than the sum of its proper divisors (27036719812280).

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

21310011202120 is a wasteful number, since it uses less digits than its factorization.

21310011202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199358 (or 8199354 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21310011202120 its reverse (2120211001312), we get a palindrome (23430222203432).

The spelling of 21310011202120 in words is "twenty-one trillion, three hundred ten billion, eleven million, two hundred two thousand, one hundred twenty".