21300341034 has 64 divisors (see below), whose sum is σ = 49088987136. Its totient is φ = 6035649984.

The previous prime is 21300341017. The next prime is 21300341047. The reversal of 21300341034 is 43014300312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 21300341034.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3867927 + ... + 3873429.

It is an arithmetic number, because the mean of its divisors is an integer number (767015424).

Almost surely, 2^21300341034 is an apocalyptic number.

21300341034 is an abundant number, since it is smaller than the sum of its proper divisors (27788646102).

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

21300341034 is a wasteful number, since it uses less digits than its factorization.

21300341034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6259.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21300341034 its reverse (43014300312), we get a palindrome (64314641346).

The spelling of 21300341034 in words is "twenty-one billion, three hundred million, three hundred forty-one thousand, thirty-four".