23031431166136 has 64 divisors (see below), whose sum is σ = 45582966374400. Its totient is φ = 10894827369600.

The previous prime is 23031431166059. The next prime is 23031431166137. The reversal of 23031431166136 is 63166113413032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031431166137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1699800 + ... + 6996583.

It is an arithmetic number, because the mean of its divisors is an integer number (712233849600).

Almost surely, 2^{23031431166136} is an apocalyptic number.

It is an amenable number.

23031431166136 is a deficient number, since it is larger than the sum of its proper divisors (22551535208264).

23031431166136 is a wasteful number, since it uses less digits than its factorization.

23031431166136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8696660 (or 8696656 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

Adding to 23031431166136 its reverse (63166113413032), we get a palindrome (86197544579168).

The spelling of 23031431166136 in words is "twenty-three trillion, thirty-one billion, four hundred thirty-one million, one hundred sixty-six thousand, one hundred thirty-six".