123691048502080 has 112 divisors (see below), whose sum is σ = 310747629456000. Its totient is φ = 46765625481216.

The previous prime is 123691048502071. The next prime is 123691048502081. The reversal of 123691048502080 is 80205840196321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123691048502081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20501635 + ... + 25839874.

Almost surely, 2^{123691048502080} is an apocalyptic number.

123691048502080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123691048502080 is an abundant number, since it is smaller than the sum of its proper divisors (187056580953920).

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

123691048502080 is a wasteful number, since it uses less digits than its factorization.

123691048502080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46341984 (or 46341974 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 123691048502080 in words is "one hundred twenty-three trillion, six hundred ninety-one billion, forty-eight million, five hundred two thousand, eighty".