321112010953 has 2 divisors, whose sum is σ = 321112010954. Its totient is φ = 321112010952.

The previous prime is 321112010929. The next prime is 321112011013. The reversal of 321112010953 is 359010211123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320857672249 + 254338704 = 566443^2 + 15948^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321112010953 is a prime.

It is a super-2 number, since 2×321112010953² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321112019953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160556005476 + 160556005477.

It is an arithmetic number, because the mean of its divisors is an integer number (160556005477).

Almost surely, 2^321112010953 is an apocalyptic number.

It is an amenable number.

321112010953 is a deficient number, since it is larger than the sum of its proper divisors (1).

321112010953 is an equidigital number, since it uses as much as digits as its factorization.

321112010953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 321112010953 in words is "three hundred twenty-one billion, one hundred twelve million, ten thousand, nine hundred fifty-three".