1301255231 has 2 divisors, whose sum is σ = 1301255232. Its totient is φ = 1301255230.

The previous prime is 1301255227. The next prime is 1301255251. The reversal of 1301255231 is 1325521031.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1325521031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1301255231 - 2² = 1301255227 is a prime.

It is a super-2 number, since 2×1301255231² = 3386530352409726722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1301255197 and 1301255206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301255251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650627615 + 650627616.

It is an arithmetic number, because the mean of its divisors is an integer number (650627616).

Almost surely, 2^1301255231 is an apocalyptic number.

1301255231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301255231 is an equidigital number, since it uses as much as digits as its factorization.

1301255231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1301255231 is about 36072.9154768505. The cubic root of 1301255231 is about 1091.7440393412.

Adding to 1301255231 its reverse (1325521031), we get a palindrome (2626776262).

The spelling of 1301255231 in words is "one billion, three hundred one million, two hundred fifty-five thousand, two hundred thirty-one".