23131002311 has 2 divisors, whose sum is σ = 23131002312. Its totient is φ = 23131002310.

The previous prime is 23131002289. The next prime is 23131002317. The reversal of 23131002311 is 11320013132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23131002311 is a prime.

It is a super-2 number, since 2×23131002311² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23131002311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23131002317) 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, 11565501155 + 11565501156.

It is an arithmetic number, because the mean of its divisors is an integer number (11565501156).

Almost surely, 2^23131002311 is an apocalyptic number.

23131002311 is a deficient number, since it is larger than the sum of its proper divisors (1).

23131002311 is an equidigital number, since it uses as much as digits as its factorization.

23131002311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23131002311 its reverse (11320013132), we get a palindrome (34451015443).

The spelling of 23131002311 in words is "twenty-three billion, one hundred thirty-one million, two thousand, three hundred eleven".