12014202391 has 4 divisors (see below), whose sum is σ = 12217833000. Its totient is φ = 11810571784.

The previous prime is 12014202377. The next prime is 12014202397. The reversal of 12014202391 is 19320241021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19320241021 = 59141 ⋅326681.

It is a cyclic number.

It is not a de Polignac number, because 12014202391 - 2⁵ = 12014202359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12014202397) 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, 101815216 + ... + 101815333.

It is an arithmetic number, because the mean of its divisors is an integer number (3054458250).

Almost surely, 2^12014202391 is an apocalyptic number.

12014202391 is a deficient number, since it is larger than the sum of its proper divisors (203630609).

12014202391 is an equidigital number, since it uses as much as digits as its factorization.

12014202391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203630608.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 12014202391 in words is "twelve billion, fourteen million, two hundred two thousand, three hundred ninety-one".