16942847131 has 4 divisors (see below), whose sum is σ = 19363253872. Its totient is φ = 14522440392.

The previous prime is 16942847113. The next prime is 16942847149. The reversal of 16942847131 is 13174824961.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (16942847113) and next prime (16942847149).

It is a cyclic number.

It is not a de Polignac number, because 16942847131 - 2⁵ = 16942847099 is a prime.

It is a super-2 number, since 2×16942847131² (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 (16942847191) 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, 1210203360 + ... + 1210203373.

It is an arithmetic number, because the mean of its divisors is an integer number (4840813468).

Almost surely, 2^16942847131 is an apocalyptic number.

16942847131 is a deficient number, since it is larger than the sum of its proper divisors (2420406741).

16942847131 is an equidigital number, since it uses as much as digits as its factorization.

16942847131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420406740.

The product of its digits is 290304, while the sum is 46.

The spelling of 16942847131 in words is "sixteen billion, nine hundred forty-two million, eight hundred forty-seven thousand, one hundred thirty-one".