12013213120 has 56 divisors (see below), whose sum is σ = 29075469408. Its totient is φ = 4726502400.

The previous prime is 12013213109. The next prime is 12013213139. The reversal of 12013213120 is 2131231021.

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 = 12013213094 and 12013213103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288196 + ... + 327235.

Almost surely, 2^12013213120 is an apocalyptic number.

12013213120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013213120 is an abundant number, since it is smaller than the sum of its proper divisors (17062256288).

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

12013213120 is an equidigital number, since it uses as much as digits as its factorization.

12013213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615509 (or 615499 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12013213120 its reverse (2131231021), we get a palindrome (14144444141).

The spelling of 12013213120 in words is "twelve billion, thirteen million, two hundred thirteen thousand, one hundred twenty".