123113220000 has 120 divisors (see below), whose sum is σ = 403836181056. Its totient is φ = 32830176000.

The previous prime is 123113219993. The next prime is 123113220037. The reversal of 123113220000 is 22311321.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 965944 + ... + 1085943.

Almost surely, 2^123113220000 is an apocalyptic number.

123113220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123113220000 is an abundant number, since it is smaller than the sum of its proper divisors (280722961056).

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

123113220000 is an equidigital number, since it uses as much as digits as its factorization.

123113220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051920 (or 2051897 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123113220000 its reverse (22311321), we get a palindrome (123135531321).

The spelling of 123113220000 in words is "one hundred twenty-three billion, one hundred thirteen million, two hundred twenty thousand".