1252353346091 has 2 divisors, whose sum is σ = 1252353346092. Its totient is φ = 1252353346090.

The previous prime is 1252353346067. The next prime is 1252353346093. The reversal of 1252353346091 is 1906433532521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252353346091 is a prime.

It is a Sophie Germain prime.

Together with 1252353346093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1252353346093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626176673045 + 626176673046.

It is an arithmetic number, because the mean of its divisors is an integer number (626176673046).

Almost surely, 2^{1252353346091} is an apocalyptic number.

1252353346091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252353346091 is an equidigital number, since it uses as much as digits as its factorization.

1252353346091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 1252353346091 in words is "one trillion, two hundred fifty-two billion, three hundred fifty-three million, three hundred forty-six thousand, ninety-one".