21141330424 has 16 divisors (see below), whose sum is σ = 41971759200. Its totient is φ = 9948861312.

The previous prime is 21141330409. The next prime is 21141330451. The reversal of 21141330424 is 42403314112.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 77725344 + ... + 77725615.

It is an arithmetic number, because the mean of its divisors is an integer number (2623234950).

Almost surely, 2^21141330424 is an apocalyptic number.

It is an amenable number.

21141330424 is a deficient number, since it is larger than the sum of its proper divisors (20830428776).

21141330424 is a wasteful number, since it uses less digits than its factorization.

21141330424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155450982 (or 155450978 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21141330424 its reverse (42403314112), we get a palindrome (63544644536).

The spelling of 21141330424 in words is "twenty-one billion, one hundred forty-one million, three hundred thirty thousand, four hundred twenty-four".