31113110223 has 48 divisors (see below), whose sum is σ = 50982902880. Its totient is φ = 18125482752.

The previous prime is 31113110213. The next prime is 31113110239. The reversal of 31113110223 is 32201131113.

31113110223 is a `hidden beast` number, since 311 + 131 + 1 + 0 + 223 = 666.

It is not a de Polignac number, because 31113110223 - 2¹⁷ = 31112979151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31113110196 and 31113110205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113110213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3581361 + ... + 3590037.

It is an arithmetic number, because the mean of its divisors is an integer number (1062143810).

Almost surely, 2^31113110223 is an apocalyptic number.

31113110223 is a deficient number, since it is larger than the sum of its proper divisors (19869792657).

31113110223 is a wasteful number, since it uses less digits than its factorization.

31113110223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10328 (or 10325 counting only the distinct ones).

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

Adding to 31113110223 its reverse (32201131113), we get a palindrome (63314241336).

The spelling of 31113110223 in words is "thirty-one billion, one hundred thirteen million, one hundred ten thousand, two hundred twenty-three".