20233110979 has 2 divisors, whose sum is σ = 20233110980. Its totient is φ = 20233110978.

The previous prime is 20233110941. The next prime is 20233111049. The reversal of 20233110979 is 97901133202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20233110979 - 2⁷ = 20233110851 is a prime.

It is not a weakly prime, because it can be changed into another prime (20233110929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116555489 + 10116555490.

It is an arithmetic number, because the mean of its divisors is an integer number (10116555490).

Almost surely, 2^20233110979 is an apocalyptic number.

20233110979 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233110979 is an equidigital number, since it uses as much as digits as its factorization.

20233110979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The spelling of 20233110979 in words is "twenty billion, two hundred thirty-three million, one hundred ten thousand, nine hundred seventy-nine".