21130342088 has 32 divisors (see below), whose sum is σ = 39893525760. Its totient is φ = 10492312320.

The previous prime is 21130342087. The next prime is 21130342091. The reversal of 21130342088 is 88024303112.

It is not an unprimeable number, because it can be changed into a prime (21130342087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692645 + ... + 722507.

It is an arithmetic number, because the mean of its divisors is an integer number (1246672680).

Almost surely, 2^21130342088 is an apocalyptic number.

It is an amenable number.

21130342088 is a deficient number, since it is larger than the sum of its proper divisors (18763183672).

21130342088 is a wasteful number, since it uses less digits than its factorization.

21130342088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30477 (or 30473 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 21130342088 in words is "twenty-one billion, one hundred thirty million, three hundred forty-two thousand, eighty-eight".