1252311343 has 2 divisors, whose sum is σ = 1252311344. Its totient is φ = 1252311342.

The previous prime is 1252311331. The next prime is 1252311407. The reversal of 1252311343 is 3431132521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3431132521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252311343 - 2⁵ = 1252311311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252311043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626155671 + 626155672.

It is an arithmetic number, because the mean of its divisors is an integer number (626155672).

Almost surely, 2^1252311343 is an apocalyptic number.

1252311343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252311343 is an equidigital number, since it uses as much as digits as its factorization.

1252311343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 25.

The square root of 1252311343 is about 35388.0112891358. The cubic root of 1252311343 is about 1077.8808878758.

Adding to 1252311343 its reverse (3431132521), we get a palindrome (4683443864).

The spelling of 1252311343 in words is "one billion, two hundred fifty-two million, three hundred eleven thousand, three hundred forty-three".