31315353353 has 4 divisors (see below), whose sum is σ = 33157432980. Its totient is φ = 29473273728.

The previous prime is 31315353341. The next prime is 31315353361. The reversal of 31315353353 is 35335351313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18470984464 + 12844368889 = 135908^2 + 113333^2 .

It is not a de Polignac number, because 31315353353 - 2¹² = 31315349257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31315653353) 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 in 3 ways as a sum of consecutive naturals, for example, 921039788 + ... + 921039821.

It is an arithmetic number, because the mean of its divisors is an integer number (8289358245).

Almost surely, 2^31315353353 is an apocalyptic number.

It is an amenable number.

31315353353 is a deficient number, since it is larger than the sum of its proper divisors (1842079627).

31315353353 is a wasteful number, since it uses less digits than its factorization.

31315353353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842079626.

The product of its digits is 91125, while the sum is 35.

The spelling of 31315353353 in words is "thirty-one billion, three hundred fifteen million, three hundred fifty-three thousand, three hundred fifty-three".