31103291353 has 2 divisors, whose sum is σ = 31103291354. Its totient is φ = 31103291352.

The previous prime is 31103291293. The next prime is 31103291369. The reversal of 31103291353 is 35319230113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20452432144 + 10650859209 = 143012^2 + 103203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31103291353 is a prime.

It is not a weakly prime, because it can be changed into another prime (31103291053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551645676 + 15551645677.

It is an arithmetic number, because the mean of its divisors is an integer number (15551645677).

Almost surely, 2^31103291353 is an apocalyptic number.

It is an amenable number.

31103291353 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103291353 is an equidigital number, since it uses as much as digits as its factorization.

31103291353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 31.

The spelling of 31103291353 in words is "thirty-one billion, one hundred three million, two hundred ninety-one thousand, three hundred fifty-three".