31080299 has 2 divisors, whose sum is σ = 31080300. Its totient is φ = 31080298.

The previous prime is 31080281. The next prime is 31080323. The reversal of 31080299 is 99208013.

It is a weak prime.

It is an emirp because it is prime and its reverse (99208013) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31080299 is a prime.

It is not a weakly prime, because it can be changed into another prime (31080209) 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, 15540149 + 15540150.

It is an arithmetic number, because the mean of its divisors is an integer number (15540150).

Almost surely, 2^31080299 is an apocalyptic number.

31080299 is a deficient number, since it is larger than the sum of its proper divisors (1).

31080299 is an equidigital number, since it uses as much as digits as its factorization.

31080299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 31080299 is about 5574.9707622552. The cubic root of 31080299 is about 314.4090676455.

The spelling of 31080299 in words is "thirty-one million, eighty thousand, two hundred ninety-nine".