20310299980 has 24 divisors (see below), whose sum is σ = 42654869712. Its totient is φ = 8123502912.

The previous prime is 20310299941. The next prime is 20310299987. The reversal of 20310299980 is 8999201302.

It is not an unprimeable number, because it can be changed into a prime (20310299987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306714 + ... + 367006.

It is an arithmetic number, because the mean of its divisors is an integer number (1777286238).

Almost surely, 2^20310299980 is an apocalyptic number.

20310299980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310299980 is an abundant number, since it is smaller than the sum of its proper divisors (22344569732).

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

20310299980 is a wasteful number, since it uses less digits than its factorization.

20310299980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77145 (or 77143 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 20310299980 in words is "twenty billion, three hundred ten million, two hundred ninety-nine thousand, nine hundred eighty".