11937243187 has 2 divisors, whose sum is σ = 11937243188. Its totient is φ = 11937243186.

The previous prime is 11937243163. The next prime is 11937243229. The reversal of 11937243187 is 78134273911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11937243187 is a prime.

It is not a weakly prime, because it can be changed into another prime (11037243187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968621593 + 5968621594.

It is an arithmetic number, because the mean of its divisors is an integer number (5968621594).

Almost surely, 2^11937243187 is an apocalyptic number.

11937243187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11937243187 is an equidigital number, since it uses as much as digits as its factorization.

11937243187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 46.

It can be divided in two parts, 1193724 and 3187, that added together give a palindrome (1196911).

The spelling of 11937243187 in words is "eleven billion, nine hundred thirty-seven million, two hundred forty-three thousand, one hundred eighty-seven".