20980431330 has 16 divisors (see below), whose sum is σ = 50353035264. Its totient is φ = 5594781680.

The previous prime is 20980431257. The next prime is 20980431347. The reversal of 20980431330 is 3313408902.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20980431291 and 20980431300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349673826 + ... + 349673885.

It is an arithmetic number, because the mean of its divisors is an integer number (3147064704).

Almost surely, 2^20980431330 is an apocalyptic number.

20980431330 is an abundant number, since it is smaller than the sum of its proper divisors (29372603934).

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

20980431330 is a wasteful number, since it uses less digits than its factorization.

20980431330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699347721.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 20980431330 in words is "twenty billion, nine hundred eighty million, four hundred thirty-one thousand, three hundred thirty".