123400126660244 has 48 divisors (see below), whose sum is σ = 248240380364928. Its totient is φ = 52577203260288.

The previous prime is 123400126660229. The next prime is 123400126660253. The reversal of 123400126660244 is 442066621004321.

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, 89350142 + ... + 90720714.

It is an arithmetic number, because the mean of its divisors is an integer number (5171674590936).

Almost surely, 2^{123400126660244} is an apocalyptic number.

123400126660244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123400126660244 is an abundant number, since it is smaller than the sum of its proper divisors (124840253704684).

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

123400126660244 is a wasteful number, since it uses less digits than its factorization.

123400126660244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389344 (or 1389342 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

Adding to 123400126660244 its reverse (442066621004321), we get a palindrome (565466747664565).

The spelling of 123400126660244 in words is "one hundred twenty-three trillion, four hundred billion, one hundred twenty-six million, six hundred sixty thousand, two hundred forty-four".