313013211021 has 12 divisors (see below), whose sum is σ = 516720221472. Its totient is φ = 178864691976.

The previous prime is 313013211011. The next prime is 313013211041. The reversal of 313013211021 is 120112310313.

313013211021 is a `hidden beast` number, since 31 + 301 + 321 + 10 + 2 + 1 = 666.

It is not a de Polignac number, because 313013211021 - 2³⁷ = 175574257549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313013210985 and 313013211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313013211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2484231771 + ... + 2484231896.

It is an arithmetic number, because the mean of its divisors is an integer number (43060018456).

Almost surely, 2^313013211021 is an apocalyptic number.

It is an amenable number.

313013211021 is a deficient number, since it is larger than the sum of its proper divisors (203707010451).

313013211021 is a wasteful number, since it uses less digits than its factorization.

313013211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968463680 (or 4968463677 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 313013211021 its reverse (120112310313), we get a palindrome (433125521334).

The spelling of 313013211021 in words is "three hundred thirteen billion, thirteen million, two hundred eleven thousand, twenty-one".