20311432019 has 2 divisors, whose sum is σ = 20311432020. Its totient is φ = 20311432018.

The previous prime is 20311432013. The next prime is 20311432049. The reversal of 20311432019 is 91023411302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20311432019 - 2²⁴ = 20294654803 is a prime.

It is a super-2 number, since 2×20311432019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20311432013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155716009 + 10155716010.

It is an arithmetic number, because the mean of its divisors is an integer number (10155716010).

Almost surely, 2^20311432019 is an apocalyptic number.

20311432019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20311432019 is an equidigital number, since it uses as much as digits as its factorization.

20311432019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 20311432019 in words is "twenty billion, three hundred eleven million, four hundred thirty-two thousand, nineteen".