331143422 has 4 divisors (see below), whose sum is σ = 496715136. Its totient is φ = 165571710.

The previous prime is 331143383. The next prime is 331143427. The reversal of 331143422 is 224341133.

331143422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 224341133 = 1231 ⋅182243.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331143427) 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 as a sum of consecutive naturals, namely, 82785854 + ... + 82785857.

It is an arithmetic number, because the mean of its divisors is an integer number (124178784).

Almost surely, 2^331143422 is an apocalyptic number.

331143422 is a deficient number, since it is larger than the sum of its proper divisors (165571714).

331143422 is a wasteful number, since it uses less digits than its factorization.

331143422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165571713.

The product of its digits is 1728, while the sum is 23.

The square root of 331143422 is about 18197.3465648154. The cubic root of 331143422 is about 691.8395372873.

Adding to 331143422 its reverse (224341133), we get a palindrome (555484555).

The spelling of 331143422 in words is "three hundred thirty-one million, one hundred forty-three thousand, four hundred twenty-two".