1321012041149 has 2 divisors, whose sum is σ = 1321012041150. Its totient is φ = 1321012041148.

The previous prime is 1321012041133. The next prime is 1321012041211. The reversal of 1321012041149 is 9411402101231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1292273315524 + 28738725625 = 1136782^2 + 169525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321012041149 - 2⁴ = 1321012041133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321012001149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660506020574 + 660506020575.

It is an arithmetic number, because the mean of its divisors is an integer number (660506020575).

Almost surely, 2^{1321012041149} is an apocalyptic number.

It is an amenable number.

1321012041149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321012041149 is an equidigital number, since it uses as much as digits as its factorization.

1321012041149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 1321012041149 in words is "one trillion, three hundred twenty-one billion, twelve million, forty-one thousand, one hundred forty-nine".