1499774325121 has 2 divisors, whose sum is σ = 1499774325122. Its totient is φ = 1499774325120.

The previous prime is 1499774325107. The next prime is 1499774325139. The reversal of 1499774325121 is 1215234779941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1300466544400 + 199307780721 = 1140380^2 + 446439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1499774325121 - 2³³ = 1491184390529 is a prime.

It is not a weakly prime, because it can be changed into another prime (1499774325151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749887162560 + 749887162561.

It is an arithmetic number, because the mean of its divisors is an integer number (749887162561).

Almost surely, 2^{1499774325121} is an apocalyptic number.

It is an amenable number.

1499774325121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1499774325121 is an equidigital number, since it uses as much as digits as its factorization.

1499774325121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 55.

The spelling of 1499774325121 in words is "one trillion, four hundred ninety-nine billion, seven hundred seventy-four million, three hundred twenty-five thousand, one hundred twenty-one".