31112223331113 has 16 divisors (see below), whose sum is σ = 47216382292800. Its totient is φ = 20235592409760.

The previous prime is 31112223331103. The next prime is 31112223331153. The reversal of 31112223331113 is 31113332221113.

31112223331113 is a `hidden beast` number, since 3 + 1 + 112 + 2 + 233 + 311 + 1 + 3 = 666.

It is not a de Polignac number, because 31112223331113 - 2¹⁴ = 31112223314729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31112223331103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14052493623 + ... + 14052495836.

It is an arithmetic number, because the mean of its divisors is an integer number (2951023893300).

Almost surely, 2^{31112223331113} is an apocalyptic number.

It is an amenable number.

31112223331113 is a deficient number, since it is larger than the sum of its proper divisors (16104158961687).

31112223331113 is a wasteful number, since it uses less digits than its factorization.

31112223331113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28104989509 (or 28104989503 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

Adding to 31112223331113 its reverse (31113332221113), we get a palindrome (62225555552226).

Subtracting 31112223331113 from its reverse (31113332221113), we obtain a square (1108890000 = 33300²).

The spelling of 31112223331113 in words is "thirty-one trillion, one hundred twelve billion, two hundred twenty-three million, three hundred thirty-one thousand, one hundred thirteen".