31255422234513 has 16 divisors (see below), whose sum is σ = 44957854849536. Its totient is φ = 19241221825280.

The previous prime is 31255422234497. The next prime is 31255422234527. The reversal of 31255422234513 is 31543222455213.

It is a cyclic number.

It is not a de Polignac number, because 31255422234513 - 2⁴ = 31255422234497 is a prime.

It is a super-2 number, since 2×31255422234513² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31255422234013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5781614433 + ... + 5781619838.

It is an arithmetic number, because the mean of its divisors is an integer number (2809865928096).

Almost surely, 2^{31255422234513} is an apocalyptic number.

It is an amenable number.

31255422234513 is a deficient number, since it is larger than the sum of its proper divisors (13702432615023).

31255422234513 is a wasteful number, since it uses less digits than its factorization.

31255422234513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11563234344.

The product of its digits is 864000, while the sum is 42.

Adding to 31255422234513 its reverse (31543222455213), we get a palindrome (62798644689726).

The spelling of 31255422234513 in words is "thirty-one trillion, two hundred fifty-five billion, four hundred twenty-two million, two hundred thirty-four thousand, five hundred thirteen".