1345242025291 has 2 divisors, whose sum is σ = 1345242025292. Its totient is φ = 1345242025290.

The previous prime is 1345242025249. The next prime is 1345242025343. The reversal of 1345242025291 is 1925202425431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1345242025291 - 2¹¹ = 1345242023243 is a prime.

It is a super-2 number, since 2×1345242025291² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1345242025241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672621012645 + 672621012646.

It is an arithmetic number, because the mean of its divisors is an integer number (672621012646).

Almost surely, 2^{1345242025291} is an apocalyptic number.

1345242025291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345242025291 is an equidigital number, since it uses as much as digits as its factorization.

1345242025291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1345242025291 in words is "one trillion, three hundred forty-five billion, two hundred forty-two million, twenty-five thousand, two hundred ninety-one".