313212123331 has 2 divisors, whose sum is σ = 313212123332. Its totient is φ = 313212123330.

The previous prime is 313212123283. The next prime is 313212123383. The reversal of 313212123331 is 133321212313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313212123331 - 2¹¹ = 313212121283 is a prime.

It is a super-2 number, since 2×313212123331² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313212123296 and 313212123305.

It is not a weakly prime, because it can be changed into another prime (313212123031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156606061665 + 156606061666.

It is an arithmetic number, because the mean of its divisors is an integer number (156606061666).

Almost surely, 2^313212123331 is an apocalyptic number.

313212123331 is a deficient number, since it is larger than the sum of its proper divisors (1).

313212123331 is an equidigital number, since it uses as much as digits as its factorization.

313212123331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

Adding to 313212123331 its reverse (133321212313), we get a palindrome (446533335644).

The spelling of 313212123331 in words is "three hundred thirteen billion, two hundred twelve million, one hundred twenty-three thousand, three hundred thirty-one".