313113222101 has 4 divisors (see below), whose sum is σ = 318246225804. Its totient is φ = 307980218400.

The previous prime is 313113222067. The next prime is 313113222139. The reversal of 313113222101 is 101222311313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179631868900 + 133481353201 = 423830^2 + 365351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313113222101 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 (313113222181) 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, 2566501760 + ... + 2566501881.

It is an arithmetic number, because the mean of its divisors is an integer number (79561556451).

Almost surely, 2^313113222101 is an apocalyptic number.

It is an amenable number.

313113222101 is a deficient number, since it is larger than the sum of its proper divisors (5133003703).

313113222101 is an equidigital number, since it uses as much as digits as its factorization.

313113222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133003702.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313113222101 its reverse (101222311313), we get a palindrome (414335533414).

The spelling of 313113222101 in words is "three hundred thirteen billion, one hundred thirteen million, two hundred twenty-two thousand, one hundred one".