313322333021 has 4 divisors (see below), whose sum is σ = 316250579232. Its totient is φ = 310394086812.

The previous prime is 313322333011. The next prime is 313322333057. The reversal of 313322333021 is 120333223313.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120333223313 = 105367 ⋅1142039.

It is not a de Polignac number, because 313322333021 - 2²² = 313318138717 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 (313322333011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464122945 + ... + 1464123158.

It is an arithmetic number, because the mean of its divisors is an integer number (79062644808).

Almost surely, 2^313322333021 is an apocalyptic number.

It is an amenable number.

313322333021 is a deficient number, since it is larger than the sum of its proper divisors (2928246211).

313322333021 is a wasteful number, since it uses less digits than its factorization.

313322333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928246210.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 313322333021 its reverse (120333223313), we get a palindrome (433655556334).

The spelling of 313322333021 in words is "three hundred thirteen billion, three hundred twenty-two million, three hundred thirty-three thousand, twenty-one".