21033130302120 has 64 divisors (see below), whose sum is σ = 63110578789440. Its totient is φ = 5607840268800.

The previous prime is 21033130302053. The next prime is 21033130302137. The reversal of 21033130302120 is 2120303133012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14858986 + ... + 16212825.

It is an arithmetic number, because the mean of its divisors is an integer number (986102793585).

Almost surely, 2^{21033130302120} is an apocalyptic number.

21033130302120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21033130302120 is an abundant number, since it is smaller than the sum of its proper divisors (42077448487320).

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

21033130302120 is a wasteful number, since it uses less digits than its factorization.

21033130302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31077466 (or 31077462 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21033130302120 its reverse (2120303133012), we get a palindrome (23153433435132).

The spelling of 21033130302120 in words is "twenty-one trillion, thirty-three billion, one hundred thirty million, three hundred two thousand, one hundred twenty".