31323302010113 has 4 divisors (see below), whose sum is σ = 31323740605140. Its totient is φ = 31322863415088.

The previous prime is 31323302010107. The next prime is 31323302010127. The reversal of 31323302010113 is 31101020332313.

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 8095066303489 + 23228235706624 = 2845183^2 + 4819568^2 .

It is a cyclic number.

It is not a de Polignac number, because 31323302010113 - 2¹⁴ = 31323301993729 is a prime.

It is a super-2 number, since 2×31323302010113² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31323302015113) 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 3 ways as a sum of consecutive naturals, for example, 219190370 + ... + 219333227.

It is an arithmetic number, because the mean of its divisors is an integer number (7830935151285).

Almost surely, 2^{31323302010113} is an apocalyptic number.

It is an amenable number.

31323302010113 is a deficient number, since it is larger than the sum of its proper divisors (438595027).

31323302010113 is an equidigital number, since it uses as much as digits as its factorization.

31323302010113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438595026.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31323302010113 its reverse (31101020332313), we get a palindrome (62424322342426).

The spelling of 31323302010113 in words is "thirty-one trillion, three hundred twenty-three billion, three hundred two million, ten thousand, one hundred thirteen".