21141030424 has 32 divisors (see below), whose sum is σ = 40132988640. Its totient is φ = 10439712000.

The previous prime is 21141030397. The next prime is 21141030517. The reversal of 21141030424 is 42403014112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21141030395 and 21141030404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158404 + ... + 259564.

It is an arithmetic number, because the mean of its divisors is an integer number (1254155895).

Almost surely, 2^21141030424 is an apocalyptic number.

It is an amenable number.

21141030424 is a deficient number, since it is larger than the sum of its proper divisors (18991958216).

21141030424 is a wasteful number, since it uses less digits than its factorization.

21141030424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101491 (or 101487 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21141030424 its reverse (42403014112), we get a palindrome (63544044536).

The spelling of 21141030424 in words is "twenty-one billion, one hundred forty-one million, thirty thousand, four hundred twenty-four".