20179321711 has 2 divisors, whose sum is σ = 20179321712. Its totient is φ = 20179321710.

The previous prime is 20179321681. The next prime is 20179321751. The reversal of 20179321711 is 11712397102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20179321711 - 2¹¹ = 20179319663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20179321751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10089660855 + 10089660856.

It is an arithmetic number, because the mean of its divisors is an integer number (10089660856).

Almost surely, 2^20179321711 is an apocalyptic number.

20179321711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20179321711 is an equidigital number, since it uses as much as digits as its factorization.

20179321711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 34.

The spelling of 20179321711 in words is "twenty billion, one hundred seventy-nine million, three hundred twenty-one thousand, seven hundred eleven".