21034334000 has 40 divisors (see below), whose sum is σ = 50861024448. Its totient is φ = 8413732800.

The previous prime is 21034333997. The next prime is 21034334011. The reversal of 21034334000 is 43343012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 5256584 + ... + 5260583.

Almost surely, 2^21034334000 is an apocalyptic number.

21034334000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21034334000 is an abundant number, since it is smaller than the sum of its proper divisors (29826690448).

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

21034334000 is a wasteful number, since it uses less digits than its factorization.

21034334000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517190 (or 10517174 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21034334000 its reverse (43343012), we get a palindrome (21077677012).

The spelling of 21034334000 in words is "twenty-one billion, thirty-four million, three hundred thirty-four thousand".