316403503311121 has 2 divisors, whose sum is σ = 316403503311122. Its totient is φ = 316403503311120.

The previous prime is 316403503311101. The next prime is 316403503311139. The reversal of 316403503311121 is 121113305304613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283046976000000 + 33356527311121 = 16824000^2 + 5775511^2 .

It is a cyclic number.

It is not a de Polignac number, because 316403503311121 - 2¹⁵ = 316403503278353 is a prime.

It is a super-2 number, since 2×316403503311121² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (316403503311101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158201751655560 + 158201751655561.

It is an arithmetic number, because the mean of its divisors is an integer number (158201751655561).

Almost surely, 2^{316403503311121} is an apocalyptic number.

It is an amenable number.

316403503311121 is a deficient number, since it is larger than the sum of its proper divisors (1).

316403503311121 is an equidigital number, since it uses as much as digits as its factorization.

316403503311121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 316403503311121 its reverse (121113305304613), we get a palindrome (437516808615734).

The spelling of 316403503311121 in words is "three hundred sixteen trillion, four hundred three billion, five hundred three million, three hundred eleven thousand, one hundred twenty-one".