21060124134 has 48 divisors (see below), whose sum is σ = 50804356608. Its totient is φ = 5700480624.

The previous prime is 21060124103. The next prime is 21060124193. The reversal of 21060124134 is 43142106012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679342 + ... + 709665.

It is an arithmetic number, because the mean of its divisors is an integer number (1058424096).

Almost surely, 2^21060124134 is an apocalyptic number.

21060124134 is an abundant number, since it is smaller than the sum of its proper divisors (29744232474).

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

21060124134 is a wasteful number, since it uses less digits than its factorization.

21060124134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389057 (or 1389038 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 21060124134 in words is "twenty-one billion, sixty million, one hundred twenty-four thousand, one hundred thirty-four".