21130241324 has 24 divisors (see below), whose sum is σ = 39163370400. Its totient is φ = 9941033216.

The previous prime is 21130241317. The next prime is 21130241357. The reversal of 21130241324 is 42314203112.

It is a self number, because there is not a number n which added to its sum of digits gives 21130241324.

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, 233702 + ... + 311250.

It is an arithmetic number, because the mean of its divisors is an integer number (1631807100).

Almost surely, 2^21130241324 is an apocalyptic number.

It is an amenable number.

21130241324 is a deficient number, since it is larger than the sum of its proper divisors (18033129076).

21130241324 is a wasteful number, since it uses less digits than its factorization.

21130241324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81577 (or 81575 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21130241324 its reverse (42314203112), we get a palindrome (63444444436).

The spelling of 21130241324 in words is "twenty-one billion, one hundred thirty million, two hundred forty-one thousand, three hundred twenty-four".