123531113073730 has 32 divisors (see below), whose sum is σ = 228392195543424. Its totient is φ = 48079807835136.

The previous prime is 123531113073691. The next prime is 123531113073787. The reversal of 123531113073730 is 37370311135321.

It is a happy number.

It is a super-3 number, since 3×123531113073730³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 15 ways as a sum of consecutive naturals, for example, 546049759 + ... + 546275938.

It is an arithmetic number, because the mean of its divisors is an integer number (7137256110732).

Almost surely, 2^{123531113073730} is an apocalyptic number.

123531113073730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123531113073730 is a deficient number, since it is larger than the sum of its proper divisors (104861082469694).

123531113073730 is a wasteful number, since it uses less digits than its factorization.

123531113073730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092326010.

The product of its (nonzero) digits is 119070, while the sum is 40.

The spelling of 123531113073730 in words is "one hundred twenty-three trillion, five hundred thirty-one billion, one hundred thirteen million, seventy-three thousand, seven hundred thirty".