220112331031 has 2 divisors, whose sum is σ = 220112331032. Its totient is φ = 220112331030.

The previous prime is 220112331029. The next prime is 220112331041. The reversal of 220112331031 is 130133211022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220112331031 - 2¹ = 220112331029 is a prime.

It is a super-2 number, since 2×220112331031² (a number of 23 digits) contains 22 as substring.

Together with 220112331029, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220112331001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056165515 + 110056165516.

It is an arithmetic number, because the mean of its divisors is an integer number (110056165516).

Almost surely, 2^220112331031 is an apocalyptic number.

220112331031 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112331031 is an equidigital number, since it uses as much as digits as its factorization.

220112331031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 220112331031 its reverse (130133211022), we get a palindrome (350245542053).

The spelling of 220112331031 in words is "two hundred twenty billion, one hundred twelve million, three hundred thirty-one thousand, thirty-one".