12310312020 has 48 divisors (see below), whose sum is σ = 34475172480. Its totient is φ = 3282150016.

The previous prime is 12310312013. The next prime is 12310312037. The reversal of 12310312020 is 2021301321.

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

It is a congruent number.

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, 383761 + ... + 414599.

It is an arithmetic number, because the mean of its divisors is an integer number (718232760).

Almost surely, 2^12310312020 is an apocalyptic number.

12310312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310312020 is an abundant number, since it is smaller than the sum of its proper divisors (22164860460).

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

12310312020 is a wasteful number, since it uses less digits than its factorization.

12310312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37504 (or 37502 counting only the distinct ones).

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

Adding to 12310312020 its reverse (2021301321), we get a palindrome (14331613341).

The spelling of 12310312020 in words is "twelve billion, three hundred ten million, three hundred twelve thousand, twenty".