31503055349 has 2 divisors, whose sum is σ = 31503055350. Its totient is φ = 31503055348.

The previous prime is 31503055343. The next prime is 31503055459. The reversal of 31503055349 is 94355030513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29044680625 + 2458374724 = 170425^2 + 49582^2 .

It is a cyclic number.

It is not a de Polignac number, because 31503055349 - 2⁸ = 31503055093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31503055343) 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, 15751527674 + 15751527675.

It is an arithmetic number, because the mean of its divisors is an integer number (15751527675).

Almost surely, 2^31503055349 is an apocalyptic number.

It is an amenable number.

31503055349 is a deficient number, since it is larger than the sum of its proper divisors (1).

31503055349 is an equidigital number, since it uses as much as digits as its factorization.

31503055349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 121500, while the sum is 38.

The spelling of 31503055349 in words is "thirty-one billion, five hundred three million, fifty-five thousand, three hundred forty-nine".