313131022201 has 4 divisors (see below), whose sum is σ = 313144011904. Its totient is φ = 313118032500.

The previous prime is 313131022153. The next prime is 313131022367. The reversal of 313131022201 is 102220131313.

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 313131022201 - 2²⁵ = 313097467769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313131022801) 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 3 ways as a sum of consecutive naturals, for example, 6458625 + ... + 6506926.

It is an arithmetic number, because the mean of its divisors is an integer number (78286002976).

Almost surely, 2^313131022201 is an apocalyptic number.

It is an amenable number.

313131022201 is a deficient number, since it is larger than the sum of its proper divisors (12989703).

313131022201 is a wasteful number, since it uses less digits than its factorization.

313131022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12989702.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313131022201 its reverse (102220131313), we get a palindrome (415351153514).

The spelling of 313131022201 in words is "three hundred thirteen billion, one hundred thirty-one million, twenty-two thousand, two hundred one".