31110223113 has 6 divisors (see below), whose sum is σ = 44936988954. Its totient is φ = 20740148736.

The previous prime is 31110223093. The next prime is 31110223139. The reversal of 31110223113 is 31132201113.

It can be written as a sum of positive squares in only one way, i.e., 30050915904 + 1059307209 = 173352^2 + 32547^2 .

It is not a de Polignac number, because 31110223113 - 2⁶ = 31110223049 is a prime.

It is a super-3 number, since 3×31110223113³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31110223153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1728345720 + ... + 1728345737.

It is an arithmetic number, because the mean of its divisors is an integer number (7489498159).

Almost surely, 2^31110223113 is an apocalyptic number.

It is an amenable number.

31110223113 is a deficient number, since it is larger than the sum of its proper divisors (13826765841).

31110223113 is a wasteful number, since it uses less digits than its factorization.

31110223113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456691463 (or 3456691460 counting only the distinct ones).

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

Adding to 31110223113 its reverse (31132201113), we get a palindrome (62242424226).

The spelling of 31110223113 in words is "thirty-one billion, one hundred ten million, two hundred twenty-three thousand, one hundred thirteen".