123241440454012 has 48 divisors (see below), whose sum is σ = 219414834374400. Its totient is φ = 60557267070720.

The previous prime is 123241440454007. The next prime is 123241440454043. The reversal of 123241440454012 is 210454044142321.

It is a happy number.

It is a super-2 number, since 2×123241440454012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185124564 + ... + 185789092.

It is an arithmetic number, because the mean of its divisors is an integer number (4571142382800).

Almost surely, 2^{123241440454012} is an apocalyptic number.

It is an amenable number.

123241440454012 is a deficient number, since it is larger than the sum of its proper divisors (96173393920388).

123241440454012 is a wasteful number, since it uses less digits than its factorization.

123241440454012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666706 (or 666704 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 123241440454012 its reverse (210454044142321), we get a palindrome (333695484596333).

The spelling of 123241440454012 in words is "one hundred twenty-three trillion, two hundred forty-one billion, four hundred forty million, four hundred fifty-four thousand, twelve".