31423234112222 has 4 divisors (see below), whose sum is σ = 47134851168336. Its totient is φ = 15711617056110.

The previous prime is 31423234112189. The next prime is 31423234112251. The reversal of 31423234112222 is 22221143232413.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7855808528054 + ... + 7855808528057.

It is an arithmetic number, because the mean of its divisors is an integer number (11783712792084).

Almost surely, 2^{31423234112222} is an apocalyptic number.

31423234112222 is a deficient number, since it is larger than the sum of its proper divisors (15711617056114).

31423234112222 is a wasteful number, since it uses less digits than its factorization.

31423234112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15711617056113.

The product of its digits is 27648, while the sum is 32.

Adding to 31423234112222 its reverse (22221143232413), we get a palindrome (53644377344635).

The spelling of 31423234112222 in words is "thirty-one trillion, four hundred twenty-three billion, two hundred thirty-four million, one hundred twelve thousand, two hundred twenty-two".