20976631230 has 16 divisors (see below), whose sum is σ = 50343915024. Its totient is φ = 5593768320.

The previous prime is 20976631229. The next prime is 20976631243. The reversal of 20976631230 is 3213667902.

It is a super-2 number, since 2×20976631230² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349610491 + ... + 349610550.

It is an arithmetic number, because the mean of its divisors is an integer number (3146494689).

Almost surely, 2^20976631230 is an apocalyptic number.

20976631230 is an abundant number, since it is smaller than the sum of its proper divisors (29367283794).

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

20976631230 is a wasteful number, since it uses less digits than its factorization.

20976631230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699221051.

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 20976631230 in words is "twenty billion, nine hundred seventy-six million, six hundred thirty-one thousand, two hundred thirty".