1312220310311 has 2 divisors, whose sum is σ = 1312220310312. Its totient is φ = 1312220310310.

The previous prime is 1312220310229. The next prime is 1312220310371. The reversal of 1312220310311 is 1130130222131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312220310311 - 2³⁴ = 1295040441127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312220310371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656110155155 + 656110155156.

It is an arithmetic number, because the mean of its divisors is an integer number (656110155156).

Almost surely, 2^{1312220310311} is an apocalyptic number.

1312220310311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312220310311 is an equidigital number, since it uses as much as digits as its factorization.

1312220310311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1312220310311 its reverse (1130130222131), we get a palindrome (2442350532442).

The spelling of 1312220310311 in words is "one trillion, three hundred twelve billion, two hundred twenty million, three hundred ten thousand, three hundred eleven".