21044301411 has 48 divisors (see below), whose sum is σ = 35494363296. Its totient is φ = 11012004864.

The previous prime is 21044301407. The next prime is 21044301413. The reversal of 21044301411 is 11410344012.

It is not a de Polignac number, because 21044301411 - 2² = 21044301407 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (21044301413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21336 + ... + 206261.

It is an arithmetic number, because the mean of its divisors is an integer number (739465902).

Almost surely, 2^21044301411 is an apocalyptic number.

21044301411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21044301411 is a deficient number, since it is larger than the sum of its proper divisors (14450061885).

21044301411 is a wasteful number, since it uses less digits than its factorization.

21044301411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227668 (or 227661 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21044301411 its reverse (11410344012), we get a palindrome (32454645423).

The spelling of 21044301411 in words is "twenty-one billion, forty-four million, three hundred one thousand, four hundred eleven".