31224344342213 has 32 divisors (see below), whose sum is σ = 36035750499840. Its totient is φ = 26756892164160.

The previous prime is 31224344342207. The next prime is 31224344342231.

31224344342213 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31224344342213 - 2¹⁶ = 31224344276677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31224344342203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77463170 + ... + 77865212.

It is an arithmetic number, because the mean of its divisors is an integer number (1126117203120).

Almost surely, 2^{31224344342213} is an apocalyptic number.

It is an amenable number.

31224344342213 is a deficient number, since it is larger than the sum of its proper divisors (4811406157627).

31224344342213 is a wasteful number, since it uses less digits than its factorization.

31224344342213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403937.

The product of its digits is 331776, while the sum is 38.

It can be divided in two parts, 3122434 and 4342213, that added together give a palindrome (7464647).

The spelling of 31224344342213 in words is "thirty-one trillion, two hundred twenty-four billion, three hundred forty-four million, three hundred forty-two thousand, two hundred thirteen".