1253344305091 has 2 divisors, whose sum is σ = 1253344305092. Its totient is φ = 1253344305090.

The previous prime is 1253344305001. The next prime is 1253344305119. The reversal of 1253344305091 is 1905034433521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253344305091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253344305001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626672152545 + 626672152546.

It is an arithmetic number, because the mean of its divisors is an integer number (626672152546).

Almost surely, 2^{1253344305091} is an apocalyptic number.

1253344305091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253344305091 is an equidigital number, since it uses as much as digits as its factorization.

1253344305091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 1253344305091 in words is "one trillion, two hundred fifty-three billion, three hundred forty-four million, three hundred five thousand, ninety-one".