20431413179 has 2 divisors, whose sum is σ = 20431413180. Its totient is φ = 20431413178.

The previous prime is 20431413173. The next prime is 20431413217. The reversal of 20431413179 is 97131413402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20431413179 is a prime.

It is not a weakly prime, because it can be changed into another prime (20431413173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215706589 + 10215706590.

It is an arithmetic number, because the mean of its divisors is an integer number (10215706590).

Almost surely, 2^20431413179 is an apocalyptic number.

20431413179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20431413179 is an equidigital number, since it uses as much as digits as its factorization.

20431413179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 20431413179 in words is "twenty billion, four hundred thirty-one million, four hundred thirteen thousand, one hundred seventy-nine".