1213132120049 has 2 divisors, whose sum is σ = 1213132120050. Its totient is φ = 1213132120048.

The previous prime is 1213132120021. The next prime is 1213132120139. The reversal of 1213132120049 is 9400212313121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1031711495824 + 181420624225 = 1015732^2 + 425935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213132120049 - 2³⁶ = 1144412643313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213132120549) 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, 606566060024 + 606566060025.

It is an arithmetic number, because the mean of its divisors is an integer number (606566060025).

Almost surely, 2^{1213132120049} is an apocalyptic number.

It is an amenable number.

1213132120049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213132120049 is an equidigital number, since it uses as much as digits as its factorization.

1213132120049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 1213132120049 in words is "one trillion, two hundred thirteen billion, one hundred thirty-two million, one hundred twenty thousand, forty-nine".