1321212031411 has 2 divisors, whose sum is σ = 1321212031412. Its totient is φ = 1321212031410.

The previous prime is 1321212031387. The next prime is 1321212031421. The reversal of 1321212031411 is 1141302121231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321212031411 - 2⁷ = 1321212031283 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321212031421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660606015705 + 660606015706.

It is an arithmetic number, because the mean of its divisors is an integer number (660606015706).

Almost surely, 2^{1321212031411} is an apocalyptic number.

1321212031411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321212031411 is an equidigital number, since it uses as much as digits as its factorization.

1321212031411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1321212031411 its reverse (1141302121231), we get a palindrome (2462514152642).

The spelling of 1321212031411 in words is "one trillion, three hundred twenty-one billion, two hundred twelve million, thirty-one thousand, four hundred eleven".