21434211230 has 8 divisors (see below), whose sum is σ = 38581580232. Its totient is φ = 8573684488.

The previous prime is 21434211181. The next prime is 21434211233. The reversal of 21434211230 is 3211243412.

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

It is a super-2 number, since 2×21434211230² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21434211196 and 21434211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21434211233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071710552 + ... + 1071710571.

It is an arithmetic number, because the mean of its divisors is an integer number (4822697529).

Almost surely, 2^21434211230 is an apocalyptic number.

21434211230 is a deficient number, since it is larger than the sum of its proper divisors (17147369002).

21434211230 is a wasteful number, since it uses less digits than its factorization.

21434211230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143421130.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21434211230 its reverse (3211243412), we get a palindrome (24645454642).

The spelling of 21434211230 in words is "twenty-one billion, four hundred thirty-four million, two hundred eleven thousand, two hundred thirty".