12001139875 has 32 divisors (see below), whose sum is σ = 15112161792. Its totient is φ = 9514908000.

The previous prime is 12001139831. The next prime is 12001139929. The reversal of 12001139875 is 57893110021.

It is not a de Polignac number, because 12001139875 - 2⁹ = 12001139363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10248040 + ... + 10249210.

It is an arithmetic number, because the mean of its divisors is an integer number (472255056).

Almost surely, 2^12001139875 is an apocalyptic number.

12001139875 is a deficient number, since it is larger than the sum of its proper divisors (3111021917).

12001139875 is a wasteful number, since it uses less digits than its factorization.

12001139875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1842 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

Adding to 12001139875 its reverse (57893110021), we get a palindrome (69894249896).

The spelling of 12001139875 in words is "twelve billion, one million, one hundred thirty-nine thousand, eight hundred seventy-five".