20301100979 has 2 divisors, whose sum is σ = 20301100980. Its totient is φ = 20301100978.

The previous prime is 20301100951. The next prime is 20301101011. The reversal of 20301100979 is 97900110302.

It is a happy number.

It is an a-pointer prime, because the next prime (20301101011) can be obtained adding 20301100979 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20301100979 is a prime.

It is not a weakly prime, because it can be changed into another prime (20301100879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150550489 + 10150550490.

It is an arithmetic number, because the mean of its divisors is an integer number (10150550490).

Almost surely, 2^20301100979 is an apocalyptic number.

20301100979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301100979 is an equidigital number, since it uses as much as digits as its factorization.

20301100979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The spelling of 20301100979 in words is "twenty billion, three hundred one million, one hundred thousand, nine hundred seventy-nine".