21010523132 has 6 divisors (see below), whose sum is σ = 36768415488. Its totient is φ = 10505261564.

The previous prime is 21010523123. The next prime is 21010523167. The reversal of 21010523132 is 23132501012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626315388 + ... + 2626315395.

It is an arithmetic number, because the mean of its divisors is an integer number (6128069248).

Almost surely, 2^21010523132 is an apocalyptic number.

It is an amenable number.

21010523132 is a deficient number, since it is larger than the sum of its proper divisors (15757892356).

21010523132 is a wasteful number, since it uses less digits than its factorization.

21010523132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252630787 (or 5252630785 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 21010523132 in words is "twenty-one billion, ten million, five hundred twenty-three thousand, one hundred thirty-two".