313213013 has 2 divisors, whose sum is σ = 313213014. Its totient is φ = 313213012.

The previous prime is 313213003. The next prime is 313213027. The reversal of 313213013 is 310312313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274995889 + 38217124 = 16583^2 + 6182^2 .

It is a cyclic number.

It is not a de Polignac number, because 313213013 - 2¹⁰ = 313211989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313212982 and 313213000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313213003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156606506 + 156606507.

It is an arithmetic number, because the mean of its divisors is an integer number (156606507).

Almost surely, 2^313213013 is an apocalyptic number.

It is an amenable number.

313213013 is a deficient number, since it is larger than the sum of its proper divisors (1).

313213013 is an equidigital number, since it uses as much as digits as its factorization.

313213013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 313213013 is about 17697.8250923666. The cubic root of 313213013 is about 679.1201227985.

Adding to 313213013 its reverse (310312313), we get a palindrome (623525326).

The spelling of 313213013 in words is "three hundred thirteen million, two hundred thirteen thousand, thirteen".