1312221100339 has 2 divisors, whose sum is σ = 1312221100340. Its totient is φ = 1312221100338.

The previous prime is 1312221100301. The next prime is 1312221100367. The reversal of 1312221100339 is 9330011222131.

It is an a-pointer prime, because the next prime (1312221100367) can be obtained adding 1312221100339 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312221100339 - 2²¹ = 1312219003187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312221100039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656110550169 + 656110550170.

It is an arithmetic number, because the mean of its divisors is an integer number (656110550170).

Almost surely, 2^{1312221100339} is an apocalyptic number.

1312221100339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312221100339 is an equidigital number, since it uses as much as digits as its factorization.

1312221100339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 1312221100339 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, one hundred thousand, three hundred thirty-nine".