31223231421422 has 32 divisors (see below), whose sum is σ = 47508295171680. Its totient is φ = 15388446228480.

The previous prime is 31223231421373. The next prime is 31223231421509. The reversal of 31223231421422 is 22412413232213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402265397 + ... + 402343007.

It is an arithmetic number, because the mean of its divisors is an integer number (1484634224115).

Almost surely, 2^{31223231421422} is an apocalyptic number.

31223231421422 is a deficient number, since it is larger than the sum of its proper divisors (16285063750258).

31223231421422 is a wasteful number, since it uses less digits than its factorization.

31223231421422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86036.

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

Adding to 31223231421422 its reverse (22412413232213), we get a palindrome (53635644653635).

The spelling of 31223231421422 in words is "thirty-one trillion, two hundred twenty-three billion, two hundred thirty-one million, four hundred twenty-one thousand, four hundred twenty-two".