123031333329966 has 16 divisors (see below), whose sum is σ = 273402962955600. Its totient is φ = 41010444443304.

The previous prime is 123031333329943. The next prime is 123031333329967. The reversal of 123031333329966 is 669923333130321.

123031333329966 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 3 + 13 + 333 + 299 + 6 + 6 = 666.

It is a super-2 number, since 2×123031333329966² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 2278358024629 = 123031333329966 / (1 + 2 + 3 + 0 + 3 + 1 + 3 + 3 + 3 + 3 + 2 + 9 + 9 + 6 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031333329967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1139179012261 + ... + 1139179012368.

It is an arithmetic number, because the mean of its divisors is an integer number (17087685184725).

Almost surely, 2^{123031333329966} is an apocalyptic number.

123031333329966 is an abundant number, since it is smaller than the sum of its proper divisors (150371629625634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123031333329966 is a wasteful number, since it uses less digits than its factorization.

123031333329966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278358024640 (or 2278358024634 counting only the distinct ones).

The product of its (nonzero) digits is 8503056, while the sum is 54.

The spelling of 123031333329966 in words is "one hundred twenty-three trillion, thirty-one billion, three hundred thirty-three million, three hundred twenty-nine thousand, nine hundred sixty-six".