21044141402 has 8 divisors (see below), whose sum is σ = 31597192800. Its totient is φ = 10511743804.

The previous prime is 21044141399. The next prime is 21044141453. The reversal of 21044141402 is 20414144012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160902 + ... + 5164977.

It is an arithmetic number, because the mean of its divisors is an integer number (3949649100).

Almost surely, 2^21044141402 is an apocalyptic number.

21044141402 is a deficient number, since it is larger than the sum of its proper divisors (10553051398).

21044141402 is a wasteful number, since it uses less digits than its factorization.

21044141402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326900.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 21044141402 its reverse (20414144012), we get a palindrome (41458285414).

The spelling of 21044141402 in words is "twenty-one billion, forty-four million, one hundred forty-one thousand, four hundred two".