123444312502426 has 16 divisors (see below), whose sum is σ = 185366844748800. Its totient is φ = 61655375816848.

The previous prime is 123444312502373. The next prime is 123444312502477. The reversal of 123444312502426 is 624205213444321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18507315 + ... + 24277753.

It is an arithmetic number, because the mean of its divisors is an integer number (11585427796800).

Almost surely, 2^{123444312502426} is an apocalyptic number.

123444312502426 is a deficient number, since it is larger than the sum of its proper divisors (61922532246374).

123444312502426 is a wasteful number, since it uses less digits than its factorization.

123444312502426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782013.

The product of its (nonzero) digits is 1105920, while the sum is 43.

Adding to 123444312502426 its reverse (624205213444321), we get a palindrome (747649525946747).

The spelling of 123444312502426 in words is "one hundred twenty-three trillion, four hundred forty-four billion, three hundred twelve million, five hundred two thousand, four hundred twenty-six".