1245311351 has 2 divisors, whose sum is σ = 1245311352. Its totient is φ = 1245311350.

The previous prime is 1245311321. The next prime is 1245311369. The reversal of 1245311351 is 1531135421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1245311351 - 2¹⁸ = 1245049207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245311351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245311311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622655675 + 622655676.

It is an arithmetic number, because the mean of its divisors is an integer number (622655676).

Almost surely, 2^1245311351 is an apocalyptic number.

1245311351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245311351 is an equidigital number, since it uses as much as digits as its factorization.

1245311351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 26.

The square root of 1245311351 is about 35288.9692538618. The cubic root of 1245311351 is about 1075.8688057800.

Adding to 1245311351 its reverse (1531135421), we get a palindrome (2776446772).

The spelling of 1245311351 in words is "one billion, two hundred forty-five million, three hundred eleven thousand, three hundred fifty-one".