243121342 has 8 divisors (see below), whose sum is σ = 368293032. Its totient is φ = 120357000.

The previous prime is 243121331. The next prime is 243121343.

243121342 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121343) 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, 601584 + ... + 601987.

It is an arithmetic number, because the mean of its divisors is an integer number (46036629).

Almost surely, 2^243121342 is an apocalyptic number.

243121342 is a deficient number, since it is larger than the sum of its proper divisors (125171690).

243121342 is a wasteful number, since it uses less digits than its factorization.

243121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203674.

The product of its digits is 1152, while the sum is 22.

The square root of 243121342 is about 15592.3488288327. The cubic root of 243121342 is about 624.1289985743.

The spelling of 243121342 in words is "two hundred forty-three million, one hundred twenty-one thousand, three hundred forty-two".