979911021011 has 16 divisors (see below), whose sum is σ = 1064720238624. Its totient is φ = 896450548224.

The previous prime is 979911020993. The next prime is 979911021029. The reversal of 979911021011 is 110120119979.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (979911020993) and next prime (979911021029).

It is a cyclic number.

It is not a de Polignac number, because 979911021011 - 2¹⁴ = 979911004627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 979911021011.

It is not an unprimeable number, because it can be changed into a prime (979911021041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23184680 + ... + 23226906.

It is an arithmetic number, because the mean of its divisors is an integer number (66545014914).

Almost surely, 2^979911021011 is an apocalyptic number.

979911021011 is a deficient number, since it is larger than the sum of its proper divisors (84809217613).

979911021011 is a wasteful number, since it uses less digits than its factorization.

979911021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58150.

The product of its (nonzero) digits is 10206, while the sum is 41.

The spelling of 979911021011 in words is "nine hundred seventy-nine billion, nine hundred eleven million, twenty-one thousand, eleven".