123013231120 has 80 divisors (see below), whose sum is σ = 312344508672. Its totient is φ = 44780520960.

The previous prime is 123013231079. The next prime is 123013231129. The reversal of 123013231120 is 21132310321.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (123013231129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759132 + ... + 906811.

Almost surely, 2^123013231120 is an apocalyptic number.

123013231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123013231120 is an abundant number, since it is smaller than the sum of its proper divisors (189331277552).

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

123013231120 is a wasteful number, since it uses less digits than its factorization.

123013231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666040 (or 1666034 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123013231120 its reverse (21132310321), we get a palindrome (144145541441).

The spelling of 123013231120 in words is "one hundred twenty-three billion, thirteen million, two hundred thirty-one thousand, one hundred twenty".