21141036044 has 6 divisors (see below), whose sum is σ = 36996813084. Its totient is φ = 10570518020.

The previous prime is 21141036023. The next prime is 21141036073. The reversal of 21141036044 is 44063014112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2642629502 + ... + 2642629509.

It is an arithmetic number, because the mean of its divisors is an integer number (6166135514).

Almost surely, 2^21141036044 is an apocalyptic number.

It is an amenable number.

21141036044 is a deficient number, since it is larger than the sum of its proper divisors (15855777040).

21141036044 is a wasteful number, since it uses less digits than its factorization.

21141036044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285259015 (or 5285259013 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 21141036044 in words is "twenty-one billion, one hundred forty-one million, thirty-six thousand, forty-four".