12011904502 has 24 divisors (see below), whose sum is σ = 19623333024. Its totient is φ = 5511883104.

The previous prime is 12011904493. The next prime is 12011904517. The reversal of 12011904502 is 20540911021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44238 + ... + 161185.

It is an arithmetic number, because the mean of its divisors is an integer number (817638876).

Almost surely, 2^12011904502 is an apocalyptic number.

12011904502 is a deficient number, since it is larger than the sum of its proper divisors (7611428522).

12011904502 is a wasteful number, since it uses less digits than its factorization.

12011904502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205624 (or 205611 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 12011904502 in words is "twelve billion, eleven million, nine hundred four thousand, five hundred two".