4202042321 has 8 divisors (see below), whose sum is σ = 4213680864. Its totient is φ = 4190417280.

The previous prime is 4202042291. The next prime is 4202042347. The reversal of 4202042321 is 1232402024.

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

It is a cyclic number.

It is not a de Polignac number, because 4202042321 - 2¹⁰ = 4202041297 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 = 4202042293 and 4202042302.

It is not an unprimeable number, because it can be changed into a prime (4202042921) 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, 988226 + ... + 992468.

It is an arithmetic number, because the mean of its divisors is an integer number (526710108).

Almost surely, 2^4202042321 is an apocalyptic number.

It is an amenable number.

4202042321 is a deficient number, since it is larger than the sum of its proper divisors (11638543).

4202042321 is a wasteful number, since it uses less digits than its factorization.

4202042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4202042321 is about 64823.1619176356. The cubic root of 4202042321 is about 1613.6901226312.

Adding to 4202042321 its reverse (1232402024), we get a palindrome (5434444345).

The spelling of 4202042321 in words is "four billion, two hundred two million, forty-two thousand, three hundred twenty-one".