342321431 has 4 divisors (see below), whose sum is σ = 342441312. Its totient is φ = 342201552.

The previous prime is 342321383. The next prime is 342321449. The reversal of 342321431 is 134123243.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342321431 is a prime.

It is a super-2 number, since 2×342321431² = 234367924243775522, 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 = 342321397 and 342321406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342321451) 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, 55550 + ... + 61403.

It is an arithmetic number, because the mean of its divisors is an integer number (85610328).

Almost surely, 2^342321431 is an apocalyptic number.

342321431 is a deficient number, since it is larger than the sum of its proper divisors (119881).

342321431 is a wasteful number, since it uses less digits than its factorization.

342321431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119880.

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

The square root of 342321431 is about 18501.9304668459. The cubic root of 342321431 is about 699.5380836929.

Adding to 342321431 its reverse (134123243), we get a palindrome (476444674).

The spelling of 342321431 in words is "three hundred forty-two million, three hundred twenty-one thousand, four hundred thirty-one".