31112162112163 has 8 divisors (see below), whose sum is σ = 33944344307136. Its totient is φ = 28280613887400.

The previous prime is 31112162112103. The next prime is 31112162112169. The reversal of 31112162112163 is 36121126121113.

It is a happy number.

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 31112162112163 - 2²¹ = 31112160015011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31112162112169) 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, 158389933 + ... + 158586238.

It is an arithmetic number, because the mean of its divisors is an integer number (4243043038392).

Almost surely, 2^{31112162112163} is an apocalyptic number.

31112162112163 is a deficient number, since it is larger than the sum of its proper divisors (2832182194973).

31112162112163 is a wasteful number, since it uses less digits than its factorization.

31112162112163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316985105.

The product of its digits is 2592, while the sum is 31.

Adding to 31112162112163 its reverse (36121126121113), we get a palindrome (67233288233276).

The spelling of 31112162112163 in words is "thirty-one trillion, one hundred twelve billion, one hundred sixty-two million, one hundred twelve thousand, one hundred sixty-three".