23031111312163 has 2 divisors, whose sum is σ = 23031111312164. Its totient is φ = 23031111312162.

The previous prime is 23031111312119. The next prime is 23031111312199. The reversal of 23031111312163 is 36121311113032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031111312163 is a prime.

It is not a weakly prime, because it can be changed into another prime (23031111312103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515555656081 + 11515555656082.

It is an arithmetic number, because the mean of its divisors is an integer number (11515555656082).

Almost surely, 2^{23031111312163} is an apocalyptic number.

23031111312163 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031111312163 is an equidigital number, since it uses as much as digits as its factorization.

23031111312163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 23031111312163 its reverse (36121311113032), we get a palindrome (59152422425195).

The spelling of 23031111312163 in words is "twenty-three trillion, thirty-one billion, one hundred eleven million, three hundred twelve thousand, one hundred sixty-three".