30231421 has 8 divisors (see below), whose sum is σ = 33307488. Its totient is φ = 27210000.

The previous prime is 30231403. The next prime is 30231433. The reversal of 30231421 is 12413203.

It is a happy number.

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 30231421 - 2¹⁵ = 30198653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231395 and 30231404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231401) 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, 12495 + ... + 14716.

It is an arithmetic number, because the mean of its divisors is an integer number (4163436).

Almost surely, 2^30231421 is an apocalyptic number.

It is an amenable number.

30231421 is a deficient number, since it is larger than the sum of its proper divisors (3076067).

30231421 is a wasteful number, since it uses less digits than its factorization.

30231421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27323.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30231421 is about 5498.3107405821. The cubic root of 30231421 is about 311.5201814152.

Adding to 30231421 its reverse (12413203), we get a palindrome (42644624).

It can be divided in two parts, 3023 and 1421, that added together give a palindrome (4444).

The spelling of 30231421 in words is "thirty million, two hundred thirty-one thousand, four hundred twenty-one".