21034115034 has 16 divisors (see below), whose sum is σ = 44282347680. Its totient is φ = 6642352080.

The previous prime is 21034115029. The next prime is 21034115041. The reversal of 21034115034 is 43051143012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21034114995 and 21034115013.

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, 92254777 + ... + 92255004.

It is an arithmetic number, because the mean of its divisors is an integer number (2767646730).

Almost surely, 2^21034115034 is an apocalyptic number.

21034115034 is an abundant number, since it is smaller than the sum of its proper divisors (23248232646).

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

21034115034 is a wasteful number, since it uses less digits than its factorization.

21034115034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184509805.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21034115034 its reverse (43051143012), we get a palindrome (64085258046).

The spelling of 21034115034 in words is "twenty-one billion, thirty-four million, one hundred fifteen thousand, thirty-four".