321112302013 has 2 divisors, whose sum is σ = 321112302014. Its totient is φ = 321112302012.

The previous prime is 321112301989. The next prime is 321112302103. The reversal of 321112302013 is 310203211123.

Together with next prime (321112302103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192986247204 + 128126054809 = 439302^2 + 357947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321112302013 is a prime.

It is a super-2 number, since 2×321112302013² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321112305013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160556151006 + 160556151007.

It is an arithmetic number, because the mean of its divisors is an integer number (160556151007).

Almost surely, 2^321112302013 is an apocalyptic number.

It is an amenable number.

321112302013 is a deficient number, since it is larger than the sum of its proper divisors (1).

321112302013 is an equidigital number, since it uses as much as digits as its factorization.

321112302013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321112302013 its reverse (310203211123), we get a palindrome (631315513136).

The spelling of 321112302013 in words is "three hundred twenty-one billion, one hundred twelve million, three hundred two thousand, thirteen".