313021031222309 has 4 divisors (see below), whose sum is σ = 313023197437440. Its totient is φ = 313018865007180.

The previous prime is 313021031222299. The next prime is 313021031222423. The reversal of 313021031222309 is 903222130120313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313021031222309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313021031222609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082890799 + ... + 1083179820.

It is an arithmetic number, because the mean of its divisors is an integer number (78255799359360).

Almost surely, 2^{313021031222309} is an apocalyptic number.

It is an amenable number.

313021031222309 is a deficient number, since it is larger than the sum of its proper divisors (2166215131).

313021031222309 is a wasteful number, since it uses less digits than its factorization.

313021031222309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166215130.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 313021031222309 in words is "three hundred thirteen trillion, twenty-one billion, thirty-one million, two hundred twenty-two thousand, three hundred nine".