313021020133 has 4 divisors (see below), whose sum is σ = 326630629728. Its totient is φ = 299411410540.

The previous prime is 313021020097. The next prime is 313021020163. The reversal of 313021020133 is 331020120313.

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 not a de Polignac number, because 313021020133 - 2²⁵ = 312987465701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313021020133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313021020163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6804804763 + ... + 6804804808.

It is an arithmetic number, because the mean of its divisors is an integer number (81657657432).

Almost surely, 2^313021020133 is an apocalyptic number.

It is an amenable number.

313021020133 is a deficient number, since it is larger than the sum of its proper divisors (13609609595).

313021020133 is a wasteful number, since it uses less digits than its factorization.

313021020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13609609594.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 313021020133 its reverse (331020120313), we get a palindrome (644041140446).

The spelling of 313021020133 in words is "three hundred thirteen billion, twenty-one million, twenty thousand, one hundred thirty-three".