12381361156 has 12 divisors (see below), whose sum is σ = 21679228480. Its totient is φ = 6187295880.

The previous prime is 12381361147. The next prime is 12381361159. The reversal of 12381361156 is 65116318321.

It is not an unprimeable number, because it can be changed into a prime (12381361159) 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, 837936 + ... + 852583.

Almost surely, 2^12381361156 is an apocalyptic number.

It is an amenable number.

12381361156 is a deficient number, since it is larger than the sum of its proper divisors (9297867324).

12381361156 is a wasteful number, since it uses less digits than its factorization.

12381361156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692354 (or 1692352 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

Adding to 12381361156 its reverse (65116318321), we get a palindrome (77497679477).

The spelling of 12381361156 in words is "twelve billion, three hundred eighty-one million, three hundred sixty-one thousand, one hundred fifty-six".