23311020431009 has 2 divisors, whose sum is σ = 23311020431010. Its totient is φ = 23311020431008.

The previous prime is 23311020431003. The next prime is 23311020431047. The reversal of 23311020431009 is 90013402011332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23239919808400 + 71100622609 = 4820780^2 + 266647^2 .

It is a cyclic number.

It is not a de Polignac number, because 23311020431009 - 2¹² = 23311020426913 is a prime.

It is not a weakly prime, because it can be changed into another prime (23311020431003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655510215504 + 11655510215505.

It is an arithmetic number, because the mean of its divisors is an integer number (11655510215505).

Almost surely, 2^{23311020431009} is an apocalyptic number.

It is an amenable number.

23311020431009 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311020431009 is an equidigital number, since it uses as much as digits as its factorization.

23311020431009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 23311020431009 in words is "twenty-three trillion, three hundred eleven billion, twenty million, four hundred thirty-one thousand, nine".