123531311064150 has 216 divisors, whose sum is σ = 366692110697640. Its totient is φ = 29791816243200.

The previous prime is 123531311064149. The next prime is 123531311064223. The reversal of 123531311064150 is 51460113135321.

123531311064150 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 3 + 1 + 3 + 1 + 1 + 0 + 641 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 4631361 + ... + 16386339.

Almost surely, 2^{123531311064150} is an apocalyptic number.

123531311064150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123531311064150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183346055348820).

123531311064150 is an abundant number, since it is smaller than the sum of its proper divisors (243160799633490).

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

123531311064150 is a wasteful number, since it uses less digits than its factorization.

123531311064150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11755212 (or 11755193 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 123531311064150 its reverse (51460113135321), we get a palindrome (174991424199471).

The spelling of 123531311064150 in words is "one hundred twenty-three trillion, five hundred thirty-one billion, three hundred eleven million, sixty-four thousand, one hundred fifty".