12961192383 has 6 divisors (see below), whose sum is σ = 18721722344. Its totient is φ = 8640794916.

The previous prime is 12961192333. The next prime is 12961192417. The reversal of 12961192383 is 38329116921.

It is a happy number.

12961192383 is a `hidden beast` number, since 1 + 2 + 9 + 611 + 9 + 23 + 8 + 3 = 666.

It is not a de Polignac number, because 12961192383 - 2⁶ = 12961192319 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 (12961192333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 720066235 + ... + 720066252.

Almost surely, 2^12961192383 is an apocalyptic number.

12961192383 is a deficient number, since it is larger than the sum of its proper divisors (5760529961).

12961192383 is a wasteful number, since it uses less digits than its factorization.

12961192383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440132493 (or 1440132490 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 12961192383 in words is "twelve billion, nine hundred sixty-one million, one hundred ninety-two thousand, three hundred eighty-three".