123255432754740 has 576 divisors, whose sum is σ = 440598753504000. Its totient is φ = 27496285470720.

The previous prime is 123255432754739. The next prime is 123255432754757. The reversal of 123255432754740 is 47457234552321.

123255432754740 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 5 + 54 + 3 + 2 + 7 + 547 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13011230644 + ... + 13011240116.

It is an arithmetic number, because the mean of its divisors is an integer number (764928391500).

Almost surely, 2^{123255432754740} is an apocalyptic number.

123255432754740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123255432754740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220299376752000).

123255432754740 is an abundant number, since it is smaller than the sum of its proper divisors (317343320749260).

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

123255432754740 is a wasteful number, since it uses less digits than its factorization.

123255432754740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024 (or 11019 counting only the distinct ones).

The product of its (nonzero) digits is 28224000, while the sum is 54.

The spelling of 123255432754740 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred thirty-two million, seven hundred fifty-four thousand, seven hundred forty".