20323665371 has 2 divisors, whose sum is σ = 20323665372. Its totient is φ = 20323665370.

The previous prime is 20323665337. The next prime is 20323665377. The reversal of 20323665371 is 17356632302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20323665371 - 2¹⁴ = 20323648987 is a prime.

It is a super-2 number, since 2×20323665371² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20323665377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161832685 + 10161832686.

It is an arithmetic number, because the mean of its divisors is an integer number (10161832686).

Almost surely, 2^20323665371 is an apocalyptic number.

20323665371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323665371 is an equidigital number, since it uses as much as digits as its factorization.

20323665371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 20323665371 in words is "twenty billion, three hundred twenty-three million, six hundred sixty-five thousand, three hundred seventy-one".