123525512433220 has 96 divisors (see below), whose sum is σ = 275562039707136. Its totient is φ = 46446875366400.

The previous prime is 123525512433209. The next prime is 123525512433227. The reversal of 123525512433220 is 22334215525321.

It is not an unprimeable number, because it can be changed into a prime (123525512433227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16638936 + ... + 22888975.

It is an arithmetic number, because the mean of its divisors is an integer number (2870437913616).

Almost surely, 2^{123525512433220} is an apocalyptic number.

123525512433220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123525512433220 is an abundant number, since it is smaller than the sum of its proper divisors (152036527273916).

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

123525512433220 is a wasteful number, since it uses less digits than its factorization.

123525512433220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39528101 (or 39528099 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 123525512433220 its reverse (22334215525321), we get a palindrome (145859727958541).

The spelling of 123525512433220 in words is "one hundred twenty-three trillion, five hundred twenty-five billion, five hundred twelve million, four hundred thirty-three thousand, two hundred twenty".