11887847131 has 8 divisors (see below), whose sum is σ = 12285567504. Its totient is φ = 11495258880.

The previous prime is 11887847119. The next prime is 11887847143. The reversal of 11887847131 is 13174878811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11887847119) and next prime (11887847143).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11887847131 - 2¹⁵ = 11887814363 is a prime.

It is a super-2 number, since 2×11887847131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11887845131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1278321 + ... + 1287586.

It is an arithmetic number, because the mean of its divisors is an integer number (1535695938).

Almost surely, 2^11887847131 is an apocalyptic number.

11887847131 is a deficient number, since it is larger than the sum of its proper divisors (397720373).

11887847131 is a wasteful number, since it uses less digits than its factorization.

11887847131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566061.

The product of its digits is 301056, while the sum is 49.

The spelling of 11887847131 in words is "eleven billion, eight hundred eighty-seven million, eight hundred forty-seven thousand, one hundred thirty-one".