21653064123130 has 32 divisors (see below), whose sum is σ = 42606051684480. Its totient is φ = 7857673427520.

The previous prime is 21653064123109. The next prime is 21653064123137. The reversal of 21653064123130 is 3132146035612.

It is a self number, because there is not a number n which added to its sum of digits gives 21653064123130.

It is not an unprimeable number, because it can be changed into a prime (21653064123137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202047085 + ... + 202154224.

It is an arithmetic number, because the mean of its divisors is an integer number (1331439115140).

Almost surely, 2^{21653064123130} is an apocalyptic number.

21653064123130 is a deficient number, since it is larger than the sum of its proper divisors (20952987561350).

21653064123130 is a wasteful number, since it uses less digits than its factorization.

21653064123130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404201814.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 21653064123130 in words is "twenty-one trillion, six hundred fifty-three billion, sixty-four million, one hundred twenty-three thousand, one hundred thirty".