21230019495004 has 24 divisors (see below), whose sum is σ = 37742995760400. Its totient is φ = 10446608489856.

The previous prime is 21230019494911. The next prime is 21230019495029. The reversal of 21230019495004 is 40059491003212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37476967 + ... + 38039230.

It is an arithmetic number, because the mean of its divisors is an integer number (1572624823350).

Almost surely, 2^{21230019495004} is an apocalyptic number.

It is an amenable number.

21230019495004 is a deficient number, since it is larger than the sum of its proper divisors (16512976265396).

21230019495004 is a wasteful number, since it uses less digits than its factorization.

21230019495004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75517317 (or 75517315 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 21230019495004 in words is "twenty-one trillion, two hundred thirty billion, nineteen million, four hundred ninety-five thousand, four".