31343521441 has 8 divisors (see below), whose sum is σ = 31946429160. Its totient is φ = 30751988176.

The previous prime is 31343521393. The next prime is 31343521459. The reversal of 31343521441 is 14412534313.

It can be written as a sum of positive squares in 4 ways, for example, as 113209600 + 31230311841 = 10640^2 + 176721^2 .

It is not a de Polignac number, because 31343521441 - 2²⁵ = 31309967009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31343524441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43611 + ... + 254143.

It is an arithmetic number, because the mean of its divisors is an integer number (3993303645).

Almost surely, 2^31343521441 is an apocalyptic number.

It is an amenable number.

31343521441 is a deficient number, since it is larger than the sum of its proper divisors (602907719).

31343521441 is an frugal number, since it uses more digits than its factorization.

31343521441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210692 (or 210586 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The spelling of 31343521441 in words is "thirty-one billion, three hundred forty-three million, five hundred twenty-one thousand, four hundred forty-one".