31103099 has 2 divisors, whose sum is σ = 31103100. Its totient is φ = 31103098.

The previous prime is 31103071. The next prime is 31103117. The reversal of 31103099 is 99030113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31103099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31103029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551549 + 15551550.

It is an arithmetic number, because the mean of its divisors is an integer number (15551550).

Almost surely, 2^31103099 is an apocalyptic number.

31103099 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103099 is an equidigital number, since it uses as much as digits as its factorization.

31103099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 31103099 is about 5577.0152411483. The cubic root of 31103099 is about 314.4859306399.

The spelling of 31103099 in words is "thirty-one million, one hundred three thousand, ninety-nine".