12013267988 has 6 divisors (see below), whose sum is σ = 21023218986. Its totient is φ = 6006633992.

The previous prime is 12013267961. The next prime is 12013268021. The reversal of 12013267988 is 88976231021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11857467664 + 155800324 = 108892^2 + 12482^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1501658495 + ... + 1501658502.

It is an arithmetic number, because the mean of its divisors is an integer number (3503869831).

Almost surely, 2^12013267988 is an apocalyptic number.

It is an amenable number.

12013267988 is a deficient number, since it is larger than the sum of its proper divisors (9009950998).

12013267988 is a wasteful number, since it uses less digits than its factorization.

12013267988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003317001 (or 3003316999 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 12013267988 in words is "twelve billion, thirteen million, two hundred sixty-seven thousand, nine hundred eighty-eight".