21430004200002 has 48 divisors (see below), whose sum is σ = 46470342814272. Its totient is φ = 7137388288800.

The previous prime is 21430004199997. The next prime is 21430004200027. The reversal of 21430004200002 is 20000240003412.

21430004200002 is a `hidden beast` number, since 214 + 30 + 0 + 0 + 420 + 0 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113215563 + ... + 113404689.

It is an arithmetic number, because the mean of its divisors is an integer number (968132141964).

Almost surely, 2^{21430004200002} is an apocalyptic number.

21430004200002 is an abundant number, since it is smaller than the sum of its proper divisors (25040338614270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21430004200002 is a wasteful number, since it uses less digits than its factorization.

21430004200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194343 (or 194340 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 21430004200002 its reverse (20000240003412), we get a palindrome (41430244203414).

The spelling of 21430004200002 in words is "twenty-one trillion, four hundred thirty billion, four million, two hundred thousand, two".