31442024413 has 4 divisors (see below), whose sum is σ = 31478885788. Its totient is φ = 31405163040.

The previous prime is 31442024407. The next prime is 31442024417.

31442024413 is nontrivially palindromic in base 10.

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 818074404 + 30623950009 = 28602^2 + 174997^2 .

It is a cyclic number.

It is not a de Polignac number, because 31442024413 - 2⁹ = 31442023901 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 (31442024417) 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, 18429408 + ... + 18431113.

It is an arithmetic number, because the mean of its divisors is an integer number (7869721447).

Almost surely, 2^31442024413 is an apocalyptic number.

It is an amenable number.

31442024413 is a deficient number, since it is larger than the sum of its proper divisors (36861375).

31442024413 is an equidigital number, since it uses as much as digits as its factorization.

31442024413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36861374.

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 314420 and 24413, that added together give a palindrome (338833).

The spelling of 31442024413 in words is "thirty-one billion, four hundred forty-two million, twenty-four thousand, four hundred thirteen".