31468331 has 2 divisors, whose sum is σ = 31468332. Its totient is φ = 31468330.

The previous prime is 31468319. The next prime is 31468337. The reversal of 31468331 is 13386413.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31468331 is a prime.

It is a super-2 number, since 2×31468331² = 1980511711851122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31468294 and 31468303.

It is not a weakly prime, because it can be changed into another prime (31468337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15734165 + 15734166.

It is an arithmetic number, because the mean of its divisors is an integer number (15734166).

Almost surely, 2^31468331 is an apocalyptic number.

31468331 is a deficient number, since it is larger than the sum of its proper divisors (1).

31468331 is an equidigital number, since it uses as much as digits as its factorization.

31468331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 31468331 is about 5609.6640719387. The cubic root of 31468331 is about 315.7121069384.

The spelling of 31468331 in words is "thirty-one million, four hundred sixty-eight thousand, three hundred thirty-one".