21013023102000 has 160 divisors (see below), whose sum is σ = 69024213685440. Its totient is φ = 5497746841600.

The previous prime is 21013023101999. The next prime is 21013023102059. The reversal of 21013023102000 is 20132031012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32721345 + ... + 33357344.

It is an arithmetic number, because the mean of its divisors is an integer number (431401335534).

Almost surely, 2^{21013023102000} is an apocalyptic number.

21013023102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21013023102000 is an abundant number, since it is smaller than the sum of its proper divisors (48011190583440).

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

21013023102000 is a wasteful number, since it uses less digits than its factorization.

21013023102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66078768 (or 66078752 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21013023102000 its reverse (20132031012), we get a palindrome (21033155133012).

The spelling of 21013023102000 in words is "twenty-one trillion, thirteen billion, twenty-three million, one hundred two thousand".