21037354124 has 6 divisors (see below), whose sum is σ = 36815369724. Its totient is φ = 10518677060.

The previous prime is 21037354111. The next prime is 21037354127. The reversal of 21037354124 is 42145373012.

It is not an unprimeable number, because it can be changed into a prime (21037354127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2629669262 + ... + 2629669269.

It is an arithmetic number, because the mean of its divisors is an integer number (6135894954).

Almost surely, 2^21037354124 is an apocalyptic number.

It is an amenable number.

21037354124 is a deficient number, since it is larger than the sum of its proper divisors (15778015600).

21037354124 is a wasteful number, since it uses less digits than its factorization.

21037354124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259338535 (or 5259338533 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 21037354124 in words is "twenty-one billion, thirty-seven million, three hundred fifty-four thousand, one hundred twenty-four".