20310299979 has 8 divisors (see below), whose sum is σ = 27348523152. Its totient is φ = 13406138400.

The previous prime is 20310299941. The next prime is 20310299987. The reversal of 20310299979 is 97999201302.

It is a happy number.

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

It is not a de Polignac number, because 20310299979 - 2³³ = 11720365387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20310299179) 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, 33515044 + ... + 33515649.

It is an arithmetic number, because the mean of its divisors is an integer number (3418565394).

Almost surely, 2^20310299979 is an apocalyptic number.

20310299979 is a deficient number, since it is larger than the sum of its proper divisors (7038223173).

20310299979 is a wasteful number, since it uses less digits than its factorization.

20310299979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67030797.

The product of its (nonzero) digits is 551124, while the sum is 51.

The spelling of 20310299979 in words is "twenty billion, three hundred ten million, two hundred ninety-nine thousand, nine hundred seventy-nine".