1320031331149 has 2 divisors, whose sum is σ = 1320031331150. Its totient is φ = 1320031331148.

The previous prime is 1320031331089. The next prime is 1320031331173. The reversal of 1320031331149 is 9411331300231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 890767878025 + 429263453124 = 943805^2 + 655182^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320031331149 - 2²³ = 1320022942541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320031331149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320031331849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660015665574 + 660015665575.

It is an arithmetic number, because the mean of its divisors is an integer number (660015665575).

Almost surely, 2^{1320031331149} is an apocalyptic number.

It is an amenable number.

1320031331149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320031331149 is an equidigital number, since it uses as much as digits as its factorization.

1320031331149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 1320031331149 in words is "one trillion, three hundred twenty billion, thirty-one million, three hundred thirty-one thousand, one hundred forty-nine".