31312363 has 2 divisors, whose sum is σ = 31312364. Its totient is φ = 31312362.

The previous prime is 31312327. The next prime is 31312381. The reversal of 31312363 is 36321313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31312363 - 2¹⁷ = 31181291 is a prime.

It is equal to p_1934041 and since 31312363 and 1934041 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (31312163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656181 + 15656182.

It is an arithmetic number, because the mean of its divisors is an integer number (15656182).

Almost surely, 2^31312363 is an apocalyptic number.

31312363 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312363 is an equidigital number, since it uses as much as digits as its factorization.

31312363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 22.

The square root of 31312363 is about 5595.7450799692. The cubic root of 31312363 is about 315.1896498004.

Adding to 31312363 its reverse (36321313), we get a palindrome (67633676).

The spelling of 31312363 in words is "thirty-one million, three hundred twelve thousand, three hundred sixty-three".