21044100410 has 16 divisors (see below), whose sum is σ = 37881043200. Its totient is φ = 8417270736.

The previous prime is 21044100409. The next prime is 21044100431. The reversal of 21044100410 is 1400144012.

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, 383051 + ... + 434529.

It is an arithmetic number, because the mean of its divisors is an integer number (2367565200).

Almost surely, 2^21044100410 is an apocalyptic number.

21044100410 is a deficient number, since it is larger than the sum of its proper divisors (16836942790).

21044100410 is a wasteful number, since it uses less digits than its factorization.

21044100410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92365.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21044100410 its reverse (1400144012), we get a palindrome (22444244422).

The spelling of 21044100410 in words is "twenty-one billion, forty-four million, one hundred thousand, four hundred ten".