342112421 has 8 divisors (see below), whose sum is σ = 392096064. Its totient is φ = 292406400.

The previous prime is 342112411. The next prime is 342112447. The reversal of 342112421 is 124211243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342112421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 342112393 and 342112402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342112411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66755 + ... + 71696.

It is an arithmetic number, because the mean of its divisors is an integer number (49012008).

Almost surely, 2^342112421 is an apocalyptic number.

It is an amenable number.

342112421 is a deficient number, since it is larger than the sum of its proper divisors (49983643).

342112421 is a wasteful number, since it uses less digits than its factorization.

342112421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138811.

The product of its digits is 384, while the sum is 20.

The square root of 342112421 is about 18496.2812748942. The cubic root of 342112421 is about 699.3956831995.

Adding to 342112421 its reverse (124211243), we get a palindrome (466323664).

It can be divided in two parts, 34211242 and 1, that added together give a palindrome (34211243).

The spelling of 342112421 in words is "three hundred forty-two million, one hundred twelve thousand, four hundred twenty-one".