21141223041 has 16 divisors (see below), whose sum is σ = 28623538944. Its totient is φ = 13878004224.

The previous prime is 21141222953. The next prime is 21141223043. The reversal of 21141223041 is 14032214112.

It is not a de Polignac number, because 21141223041 - 2³¹ = 18993739393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21141222999 and 21141223017.

It is not an unprimeable number, because it can be changed into a prime (21141223043) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 127065 + ... + 241718.

It is an arithmetic number, because the mean of its divisors is an integer number (1788971184).

Almost surely, 2^21141223041 is an apocalyptic number.

It is an amenable number.

21141223041 is a deficient number, since it is larger than the sum of its proper divisors (7482315903).

21141223041 is a wasteful number, since it uses less digits than its factorization.

21141223041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369080.

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

Adding to 21141223041 its reverse (14032214112), we get a palindrome (35173437153).

The spelling of 21141223041 in words is "twenty-one billion, one hundred forty-one million, two hundred twenty-three thousand, forty-one".