1301311233 has 6 divisors (see below), whose sum is σ = 1879671794. Its totient is φ = 867540816.

The previous prime is 1301311183. The next prime is 1301311301. The reversal of 1301311233 is 3321131031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 750376449 + 550934784 = 27393^2 + 23472^2 .

It is not a de Polignac number, because 1301311233 - 2¹⁷ = 1301180161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301301233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72295060 + ... + 72295077.

Almost surely, 2^1301311233 is an apocalyptic number.

It is an amenable number.

1301311233 is a deficient number, since it is larger than the sum of its proper divisors (578360561).

1301311233 is a wasteful number, since it uses less digits than its factorization.

1301311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144590143 (or 144590140 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1301311233 is about 36073.6917018483. The cubic root of 1301311233 is about 1091.7597008786.

Adding to 1301311233 its reverse (3321131031), we get a palindrome (4622442264).

The spelling of 1301311233 in words is "one billion, three hundred one million, three hundred eleven thousand, two hundred thirty-three".