1253345311 has 2 divisors, whose sum is σ = 1253345312. Its totient is φ = 1253345310.

The previous prime is 1253345309. The next prime is 1253345333. The reversal of 1253345311 is 1135433521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1253345311 - 2¹ = 1253345309 is a prime.

Together with 1253345309, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1253345311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1253345351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626672655 + 626672656.

It is an arithmetic number, because the mean of its divisors is an integer number (626672656).

Almost surely, 2^1253345311 is an apocalyptic number.

1253345311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253345311 is an equidigital number, since it uses as much as digits as its factorization.

1253345311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 1253345311 is about 35402.6172902513. The cubic root of 1253345311 is about 1078.1774562348.

Adding to 1253345311 its reverse (1135433521), we get a palindrome (2388778832).

The spelling of 1253345311 in words is "one billion, two hundred fifty-three million, three hundred forty-five thousand, three hundred eleven".