31242422413 has 8 divisors (see below), whose sum is σ = 31601597048. Its totient is φ = 30884004864.

The previous prime is 31242422371. The next prime is 31242422429. The reversal of 31242422413 is 31422424213.

It can be written as a sum of positive squares in 4 ways, for example, as 2573837289 + 28668585124 = 50733^2 + 169318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31242422413 - 2⁹ = 31242421901 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 (31242423413) 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, 106056 + ... + 271537.

It is an arithmetic number, because the mean of its divisors is an integer number (3950199631).

Almost surely, 2^31242422413 is an apocalyptic number.

It is an amenable number.

31242422413 is a deficient number, since it is larger than the sum of its proper divisors (359174635).

31242422413 is an equidigital number, since it uses as much as digits as its factorization.

31242422413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378543.

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

Adding to 31242422413 its reverse (31422424213), we get a palindrome (62664846626).

The spelling of 31242422413 in words is "thirty-one billion, two hundred forty-two million, four hundred twenty-two thousand, four hundred thirteen".