313331121111 has 4 divisors (see below), whose sum is σ = 417774828152. Its totient is φ = 208887414072.

The previous prime is 313331121107. The next prime is 313331121119. The reversal of 313331121111 is 111121133313.

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

It is not a de Polignac number, because 313331121111 - 2² = 313331121107 is a prime.

It is a super-2 number, since 2×313331121111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313331121119) 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, 52221853516 + ... + 52221853521.

It is an arithmetic number, because the mean of its divisors is an integer number (104443707038).

Almost surely, 2^313331121111 is an apocalyptic number.

313331121111 is a deficient number, since it is larger than the sum of its proper divisors (104443707041).

313331121111 is a wasteful number, since it uses less digits than its factorization.

313331121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104443707040.

The product of its digits is 162, while the sum is 21.

Adding to 313331121111 its reverse (111121133313), we get a palindrome (424452254424).

The spelling of 313331121111 in words is "three hundred thirteen billion, three hundred thirty-one million, one hundred twenty-one thousand, one hundred eleven".