31224131413 has 24 divisors (see below), whose sum is σ = 33535358208. Its totient is φ = 29016120672.

The previous prime is 31224131399. The next prime is 31224131431. The reversal of 31224131413 is 31413142213.

It is not a de Polignac number, because 31224131413 - 2⁵ = 31224131381 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 (31224131473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8375956 + ... + 8379682.

It is an arithmetic number, because the mean of its divisors is an integer number (1397306592).

Almost surely, 2^31224131413 is an apocalyptic number.

It is an amenable number.

31224131413 is a deficient number, since it is larger than the sum of its proper divisors (2311226795).

31224131413 is a wasteful number, since it uses less digits than its factorization.

31224131413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 3990 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 31224131413 its reverse (31413142213), we get a palindrome (62637273626).

The spelling of 31224131413 in words is "thirty-one billion, two hundred twenty-four million, one hundred thirty-one thousand, four hundred thirteen".