210030142430421 has 24 divisors (see below), whose sum is σ = 321269957311680. Its totient is φ = 131764178150016.

The previous prime is 210030142430401. The next prime is 210030142430467. The reversal of 210030142430421 is 124034241030012.

210030142430421 is a `hidden beast` number, since 2 + 10 + 0 + 301 + 4 + 24 + 304 + 21 = 666.

It is not a de Polignac number, because 210030142430421 - 2⁹ = 210030142429909 is a prime.

It is a super-2 number, since 2×210030142430421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210030142430401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100212705 + ... + 102287078.

It is an arithmetic number, because the mean of its divisors is an integer number (13386248221320).

Almost surely, 2^{210030142430421} is an apocalyptic number.

It is an amenable number.

210030142430421 is a deficient number, since it is larger than the sum of its proper divisors (111239814881259).

210030142430421 is a wasteful number, since it uses less digits than its factorization.

210030142430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202506585 (or 202506582 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 210030142430421 its reverse (124034241030012), we get a palindrome (334064383460433).

The spelling of 210030142430421 in words is "two hundred ten trillion, thirty billion, one hundred forty-two million, four hundred thirty thousand, four hundred twenty-one".