123123143113250 has 32 divisors (see below), whose sum is σ = 263413170184320. Its totient is φ = 42213649066800.

The previous prime is 123123143113249. The next prime is 123123143113291. The reversal of 123123143113250 is 52311341321321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35178039140 + ... + 35178042639.

It is an arithmetic number, because the mean of its divisors is an integer number (8231661568260).

Almost surely, 2^{123123143113250} is an apocalyptic number.

123123143113250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123123143113250 is an abundant number, since it is smaller than the sum of its proper divisors (140290027071070).

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

123123143113250 is an equidigital number, since it uses as much as digits as its factorization.

123123143113250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70356081803 (or 70356081793 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 123123143113250 its reverse (52311341321321), we get a palindrome (175434484434571).

The spelling of 123123143113250 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, one hundred forty-three million, one hundred thirteen thousand, two hundred fifty".