21114030441 has 16 divisors (see below), whose sum is σ = 32177746304. Its totient is φ = 12063665664.

The previous prime is 21114030439. The next prime is 21114030479. The reversal of 21114030441 is 14403041112.

It is not a de Polignac number, because 21114030441 - 2¹ = 21114030439 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21114034441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124281 + ... + 240153.

It is an arithmetic number, because the mean of its divisors is an integer number (2011109144).

Almost surely, 2^21114030441 is an apocalyptic number.

21114030441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21114030441 is a deficient number, since it is larger than the sum of its proper divisors (11063715863).

21114030441 is a wasteful number, since it uses less digits than its factorization.

21114030441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124560.

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

Adding to 21114030441 its reverse (14403041112), we get a palindrome (35517071553).

The spelling of 21114030441 in words is "twenty-one billion, one hundred fourteen million, thirty thousand, four hundred forty-one".