31848675431 has 2 divisors, whose sum is σ = 31848675432. Its totient is φ = 31848675430.

The previous prime is 31848675421. The next prime is 31848675433. The reversal of 31848675431 is 13457684813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31848675431 - 2¹⁸ = 31848413287 is a prime.

It is a super-2 number, since 2×31848675431² (a number of 22 digits) contains 22 as substring.

Together with 31848675433, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31848675431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31848675433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15924337715 + 15924337716.

It is an arithmetic number, because the mean of its divisors is an integer number (15924337716).

Almost surely, 2^31848675431 is an apocalyptic number.

31848675431 is a deficient number, since it is larger than the sum of its proper divisors (1).

31848675431 is an equidigital number, since it uses as much as digits as its factorization.

31848675431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The spelling of 31848675431 in words is "thirty-one billion, eight hundred forty-eight million, six hundred seventy-five thousand, four hundred thirty-one".