427030204021 has 8 divisors (see below), whose sum is σ = 441865366200. Its totient is φ = 412202374080.

The previous prime is 427030203997. The next prime is 427030204037. The reversal of 427030204021 is 120402030724.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 98775689796 + 328254514225 = 314286^2 + 572935^2 .

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 427030204021 - 2¹⁷ = 427030072949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427030201021) 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, 1714426 + ... + 1947643.

It is an arithmetic number, because the mean of its divisors is an integer number (55233170775).

Almost surely, 2^427030204021 is an apocalyptic number.

It is an amenable number.

427030204021 is a deficient number, since it is larger than the sum of its proper divisors (14835162179).

427030204021 is a wasteful number, since it uses less digits than its factorization.

427030204021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666119.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 427030204021 its reverse (120402030724), we get a palindrome (547432234745).

The spelling of 427030204021 in words is "four hundred twenty-seven billion, thirty million, two hundred four thousand, twenty-one".