12002113787 has 4 divisors (see below), whose sum is σ = 12016086840. Its totient is φ = 11988140736.

The previous prime is 12002113771. The next prime is 12002113793. The reversal of 12002113787 is 78731120021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78731120021 = 19 ⋅4143743159.

It is a cyclic number.

It is not a de Polignac number, because 12002113787 - 2⁴ = 12002113771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002113757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6985238 + ... + 6986955.

It is an arithmetic number, because the mean of its divisors is an integer number (3004021710).

Almost surely, 2^12002113787 is an apocalyptic number.

12002113787 is a deficient number, since it is larger than the sum of its proper divisors (13973053).

12002113787 is an equidigital number, since it uses as much as digits as its factorization.

12002113787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973052.

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 12002113787 in words is "twelve billion, two million, one hundred thirteen thousand, seven hundred eighty-seven".