12011340387 has 16 divisors (see below), whose sum is σ = 16156467360. Its totient is φ = 7937190912.

The previous prime is 12011340373. The next prime is 12011340431. The reversal of 12011340387 is 78304311021.

It is not a de Polignac number, because 12011340387 - 2¹⁹ = 12010816099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011340317) 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, 121203 + ... + 196755.

It is an arithmetic number, because the mean of its divisors is an integer number (1009779210).

Almost surely, 2^12011340387 is an apocalyptic number.

12011340387 is a deficient number, since it is larger than the sum of its proper divisors (4145126973).

12011340387 is a wasteful number, since it uses less digits than its factorization.

12011340387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76022.

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 12011340387 in words is "twelve billion, eleven million, three hundred forty thousand, three hundred eighty-seven".