21141241042 has 12 divisors (see below), whose sum is σ = 32240261898. Its totient is φ = 10397328000.

The previous prime is 21141241031. The next prime is 21141241087. The reversal of 21141241042 is 24014214112.

It can be written as a sum of positive squares in 3 ways, for example, as 2837586361 + 18303654681 = 53269^2 + 135291^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1412959 + ... + 1427842.

Almost surely, 2^21141241042 is an apocalyptic number.

21141241042 is a deficient number, since it is larger than the sum of its proper divisors (11099020856).

21141241042 is an equidigital number, since it uses as much as digits as its factorization.

21141241042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840925 (or 2840864 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21141241042 its reverse (24014214112), we get a palindrome (45155455154).

The spelling of 21141241042 in words is "twenty-one billion, one hundred forty-one million, two hundred forty-one thousand, forty-two".