231222342 has 32 divisors (see below), whose sum is σ = 498597120. Its totient is φ = 71062560.

The previous prime is 231222319. The next prime is 231222347. The reversal of 231222342 is 243222132.

It is a super-3 number, since 3×231222342³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125367 + ... + 127197.

It is an arithmetic number, because the mean of its divisors is an integer number (15581160).

Almost surely, 2^231222342 is an apocalyptic number.

231222342 is an abundant number, since it is smaller than the sum of its proper divisors (267374778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231222342 is a wasteful number, since it uses less digits than its factorization.

231222342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468.

The product of its digits is 1152, while the sum is 21.

The square root of 231222342 is about 15205.9969091145. The cubic root of 231222342 is about 613.7760414976.

Adding to 231222342 its reverse (243222132), we get a palindrome (474444474).

The spelling of 231222342 in words is "two hundred thirty-one million, two hundred twenty-two thousand, three hundred forty-two".