123013100320 has 96 divisors (see below), whose sum is σ = 324771140736. Its totient is φ = 43640985600.

The previous prime is 123013100293. The next prime is 123013100339. The reversal of 123013100320 is 23001310321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 123013100294 and 123013100303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780204 + ... + 924523.

It is an arithmetic number, because the mean of its divisors is an integer number (3383032716).

Almost surely, 2^123013100320 is an apocalyptic number.

123013100320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123013100320 is an abundant number, since it is smaller than the sum of its proper divisors (201758040416).

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

123013100320 is a wasteful number, since it uses less digits than its factorization.

123013100320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704794 (or 1704786 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 123013100320 its reverse (23001310321), we get a palindrome (146014410641).

The spelling of 123013100320 in words is "one hundred twenty-three billion, thirteen million, one hundred thousand, three hundred twenty".