123132001100100 has 72 divisors (see below), whose sum is σ = 356274312817920. Its totient is φ = 32834058391680.

The previous prime is 123132001100089. The next prime is 123132001100113. The reversal of 123132001100100 is 1001100231321.

It is a happy number.

It is a super-2 number, since 2×123132001100100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 123132001100100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1521421 + ... + 15766379.

Almost surely, 2^{123132001100100} is an apocalyptic number.

123132001100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123132001100100 is an abundant number, since it is smaller than the sum of its proper divisors (233142311717820).

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

123132001100100 is a wasteful number, since it uses less digits than its factorization.

123132001100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14273789 (or 14273782 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 123132001100100 its reverse (1001100231321), we get a palindrome (124133101331421).

The spelling of 123132001100100 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, one million, one hundred thousand, one hundred".