1276368345331 has 2 divisors, whose sum is σ = 1276368345332. Its totient is φ = 1276368345330.

The previous prime is 1276368345319. The next prime is 1276368345347. The reversal of 1276368345331 is 1335438636721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1276368345331 - 2¹⁷ = 1276368214259 is a prime.

It is a super-2 number, since 2×1276368345331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1276368349331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638184172665 + 638184172666.

It is an arithmetic number, because the mean of its divisors is an integer number (638184172666).

Almost surely, 2^{1276368345331} is an apocalyptic number.

1276368345331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276368345331 is an equidigital number, since it uses as much as digits as its factorization.

1276368345331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 52.

The spelling of 1276368345331 in words is "one trillion, two hundred seventy-six billion, three hundred sixty-eight million, three hundred forty-five thousand, three hundred thirty-one".