1313231033 has 2 divisors, whose sum is σ = 1313231034. Its totient is φ = 1313231032.

The previous prime is 1313230993. The next prime is 1313231039. The reversal of 1313231033 is 3301323131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1252593664 + 60637369 = 35392^2 + 7787^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313231033 - 2¹⁸ = 1312968889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313230996 and 1313231014.

It is not a weakly prime, because it can be changed into another prime (1313231039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656615516 + 656615517.

It is an arithmetic number, because the mean of its divisors is an integer number (656615517).

Almost surely, 2^1313231033 is an apocalyptic number.

It is an amenable number.

1313231033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313231033 is an equidigital number, since it uses as much as digits as its factorization.

1313231033 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 1313231033 is about 36238.5296749192. The cubic root of 1313231033 is about 1095.0830217210.

Adding to 1313231033 its reverse (3301323131), we get a palindrome (4614554164).

The spelling of 1313231033 in words is "one billion, three hundred thirteen million, two hundred thirty-one thousand, thirty-three".