12130123020 has 24 divisors (see below), whose sum is σ = 33964344624. Its totient is φ = 3234699456.

The previous prime is 12130123009. The next prime is 12130123043. The reversal of 12130123020 is 2032103121.

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 7 ways as a sum of consecutive naturals, for example, 101084299 + ... + 101084418.

It is an arithmetic number, because the mean of its divisors is an integer number (1415181026).

Almost surely, 2^12130123020 is an apocalyptic number.

12130123020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130123020 is an abundant number, since it is smaller than the sum of its proper divisors (21834221604).

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

12130123020 is a wasteful number, since it uses less digits than its factorization.

12130123020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202168729 (or 202168727 counting only the distinct ones).

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

Adding to 12130123020 its reverse (2032103121), we get a palindrome (14162226141).

The spelling of 12130123020 in words is "twelve billion, one hundred thirty million, one hundred twenty-three thousand, twenty".