342143231 has 4 divisors (see below), whose sum is σ = 342199032. Its totient is φ = 342087432.

The previous prime is 342143227. The next prime is 342143251. The reversal of 342143231 is 132341243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132341243 = 17 ⋅7784779.

It is a cyclic number.

It is not a de Polignac number, because 342143231 - 2² = 342143227 is a prime.

It is a super-2 number, since 2×342143231² = 234123981038238722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342143197 and 342143206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342143251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17381 + ... + 31406.

It is an arithmetic number, because the mean of its divisors is an integer number (85549758).

Almost surely, 2^342143231 is an apocalyptic number.

342143231 is a deficient number, since it is larger than the sum of its proper divisors (55801).

342143231 is an equidigital number, since it uses as much as digits as its factorization.

342143231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55800.

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

The square root of 342143231 is about 18497.1141262630. The cubic root of 342143231 is about 699.4166779884.

Adding to 342143231 its reverse (132341243), we get a palindrome (474484474).

The spelling of 342143231 in words is "three hundred forty-two million, one hundred forty-three thousand, two hundred thirty-one".