31313044111 has 8 divisors (see below), whose sum is σ = 31634913440. Its totient is φ = 30991518432.

The previous prime is 31313044097. The next prime is 31313044121. The reversal of 31313044111 is 11144031313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31313044111 - 2⁵ = 31313044079 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 (31313044121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99301 + ... + 269233.

It is an arithmetic number, because the mean of its divisors is an integer number (3954364180).

Almost surely, 2^31313044111 is an apocalyptic number.

31313044111 is a deficient number, since it is larger than the sum of its proper divisors (321869329).

31313044111 is a wasteful number, since it uses less digits than its factorization.

31313044111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171825.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31313044111 its reverse (11144031313), we get a palindrome (42457075424).

The spelling of 31313044111 in words is "thirty-one billion, three hundred thirteen million, forty-four thousand, one hundred eleven".