1301231333 has 2 divisors, whose sum is σ = 1301231334. Its totient is φ = 1301231332.

The previous prime is 1301231329. The next prime is 1301231369. The reversal of 1301231333 is 3331321031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007554564 + 293676769 = 31742^2 + 17137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301231333 - 2² = 1301231329 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301231383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650615666 + 650615667.

It is an arithmetic number, because the mean of its divisors is an integer number (650615667).

Almost surely, 2^1301231333 is an apocalyptic number.

It is an amenable number.

1301231333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301231333 is an equidigital number, since it uses as much as digits as its factorization.

1301231333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1301231333 is about 36072.5842295780. The cubic root of 1301231333 is about 1091.7373558820.

Adding to 1301231333 its reverse (3331321031), we get a palindrome (4632552364).

The spelling of 1301231333 in words is "one billion, three hundred one million, two hundred thirty-one thousand, three hundred thirty-three".