21341300434 has 16 divisors (see below), whose sum is σ = 32709276288. Its totient is φ = 10438433712.

The previous prime is 21341300429. The next prime is 21341300447. The reversal of 21341300434 is 43400314312.

It is a super-2 number, since 2×21341300434² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21341300399 and 21341300408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137689 + ... + 248275.

It is an arithmetic number, because the mean of its divisors is an integer number (2044329768).

Almost surely, 2^21341300434 is an apocalyptic number.

21341300434 is a deficient number, since it is larger than the sum of its proper divisors (11367975854).

21341300434 is a wasteful number, since it uses less digits than its factorization.

21341300434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112689.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21341300434 its reverse (43400314312), we get a palindrome (64741614746).

The spelling of 21341300434 in words is "twenty-one billion, three hundred forty-one million, three hundred thousand, four hundred thirty-four".