12011542113 has 16 divisors (see below), whose sum is σ = 16860948800. Its totient is φ = 7585047360.

The previous prime is 12011542093. The next prime is 12011542133. The reversal of 12011542113 is 31124511021.

It is an interprime number because it is at equal distance from previous prime (12011542093) and next prime (12011542133).

It is not a de Polignac number, because 12011542113 - 2⁹ = 12011541601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12011542113.

It is not an unprimeable number, because it can be changed into a prime (12011542133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479643 + ... + 504063.

It is an arithmetic number, because the mean of its divisors is an integer number (1053809300).

Almost surely, 2^12011542113 is an apocalyptic number.

It is an amenable number.

12011542113 is a deficient number, since it is larger than the sum of its proper divisors (4849406687).

12011542113 is a wasteful number, since it uses less digits than its factorization.

12011542113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33072.

The product of its (nonzero) digits is 240, while the sum is 21.

The spelling of 12011542113 in words is "twelve billion, eleven million, five hundred forty-two thousand, one hundred thirteen".