12103231020 has 48 divisors (see below), whose sum is σ = 33894954240. Its totient is φ = 3226965696.

The previous prime is 12103230967. The next prime is 12103231033. The reversal of 12103231020 is 2013230121.

It is a super-2 number, since 2×12103231020² (a number of 21 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 419169 + ... + 447111.

It is an arithmetic number, because the mean of its divisors is an integer number (706144880).

Almost surely, 2^12103231020 is an apocalyptic number.

12103231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103231020 is an abundant number, since it is smaller than the sum of its proper divisors (21791723220).

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

12103231020 is a wasteful number, since it uses less digits than its factorization.

12103231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35174 (or 35172 counting only the distinct ones).

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

Adding to 12103231020 its reverse (2013230121), we get a palindrome (14116461141).

The spelling of 12103231020 in words is "twelve billion, one hundred three million, two hundred thirty-one thousand, twenty".