23431362620389 has 2 divisors, whose sum is σ = 23431362620390. Its totient is φ = 23431362620388.

The previous prime is 23431362620363. The next prime is 23431362620423. The reversal of 23431362620389 is 98302626313432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15483107480164 + 7948255140225 = 3934858^2 + 2819265^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431362620389 - 2²³ = 23431354231781 is a prime.

It is a super-2 number, since 2×23431362620389² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23431362626389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715681310194 + 11715681310195.

It is an arithmetic number, because the mean of its divisors is an integer number (11715681310195).

Almost surely, 2^{23431362620389} is an apocalyptic number.

It is an amenable number.

23431362620389 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431362620389 is an equidigital number, since it uses as much as digits as its factorization.

23431362620389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 23431362620389 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred sixty-two million, six hundred twenty thousand, three hundred eighty-nine".