313233030133 has 2 divisors, whose sum is σ = 313233030134. Its totient is φ = 313233030132.

The previous prime is 313233029987. The next prime is 313233030157. The reversal of 313233030133 is 331030332313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216836441649 + 96396588484 = 465657^2 + 310478^2 .

It is a cyclic number.

It is not a de Polignac number, because 313233030133 - 2⁹ = 313233029621 is a prime.

It is a super-2 number, since 2×313233030133² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313233030098 and 313233030107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313233030193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156616515066 + 156616515067.

It is an arithmetic number, because the mean of its divisors is an integer number (156616515067).

Almost surely, 2^313233030133 is an apocalyptic number.

It is an amenable number.

313233030133 is a deficient number, since it is larger than the sum of its proper divisors (1).

313233030133 is an equidigital number, since it uses as much as digits as its factorization.

313233030133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 313233030133 its reverse (331030332313), we get a palindrome (644263362446).

The spelling of 313233030133 in words is "three hundred thirteen billion, two hundred thirty-three million, thirty thousand, one hundred thirty-three".