21131634302 has 8 divisors (see below), whose sum is σ = 32011287912. Its totient is φ = 10461205000.

The previous prime is 21131634281. The next prime is 21131634311. The reversal of 21131634302 is 20343613112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52305824 + ... + 52306227.

It is an arithmetic number, because the mean of its divisors is an integer number (4001410989).

Almost surely, 2^21131634302 is an apocalyptic number.

21131634302 is a deficient number, since it is larger than the sum of its proper divisors (10879653610).

21131634302 is a wasteful number, since it uses less digits than its factorization.

21131634302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104612154.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 21131634302 in words is "twenty-one billion, one hundred thirty-one million, six hundred thirty-four thousand, three hundred two".