1321012041211 has 2 divisors, whose sum is σ = 1321012041212. Its totient is φ = 1321012041210.

The previous prime is 1321012041149. The next prime is 1321012041221. The reversal of 1321012041211 is 1121402101231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321012041211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321012041221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660506020605 + 660506020606.

It is an arithmetic number, because the mean of its divisors is an integer number (660506020606).

Almost surely, 2^{1321012041211} is an apocalyptic number.

1321012041211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321012041211 is an equidigital number, since it uses as much as digits as its factorization.

1321012041211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1321012041211 its reverse (1121402101231), we get a palindrome (2442414142442).

The spelling of 1321012041211 in words is "one trillion, three hundred twenty-one billion, twelve million, forty-one thousand, two hundred eleven".