1331412263 has 2 divisors, whose sum is σ = 1331412264. Its totient is φ = 1331412262.

The previous prime is 1331412259. The next prime is 1331412283. The reversal of 1331412263 is 3622141331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331412263 - 2² = 1331412259 is a prime.

It is a super-2 number, since 2×1331412263² = 3545317228133562338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331412223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665706131 + 665706132.

It is an arithmetic number, because the mean of its divisors is an integer number (665706132).

Almost surely, 2^1331412263 is an apocalyptic number.

1331412263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331412263 is an equidigital number, since it uses as much as digits as its factorization.

1331412263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 1331412263 is about 36488.5223460748. The cubic root of 1331412263 is about 1100.1135593506.

Adding to 1331412263 its reverse (3622141331), we get a palindrome (4953553594).

The spelling of 1331412263 in words is "one billion, three hundred thirty-one million, four hundred twelve thousand, two hundred sixty-three".