31342844573 has 4 divisors (see below), whose sum is σ = 31665966780. Its totient is φ = 31019722368.

The previous prime is 31342844537. The next prime is 31342844623. The reversal of 31342844573 is 37544824313.

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 20432415364 + 10910429209 = 142942^2 + 104453^2 .

It is a cyclic number.

It is not a de Polignac number, because 31342844573 - 2¹⁸ = 31342582429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31342844873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161560958 + ... + 161561151.

It is an arithmetic number, because the mean of its divisors is an integer number (7916491695).

Almost surely, 2^31342844573 is an apocalyptic number.

It is an amenable number.

31342844573 is a deficient number, since it is larger than the sum of its proper divisors (323122207).

31342844573 is an equidigital number, since it uses as much as digits as its factorization.

31342844573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323122206.

The product of its digits is 967680, while the sum is 44.

The spelling of 31342844573 in words is "thirty-one billion, three hundred forty-two million, eight hundred forty-four thousand, five hundred seventy-three".