21325045324 has 18 divisors (see below), whose sum is σ = 41019871172. Its totient is φ = 9693202200.

The previous prime is 21325045303. The next prime is 21325045351. The reversal of 21325045324 is 42354052312.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22029522 + ... + 22030489.

Almost surely, 2^21325045324 is an apocalyptic number.

It is an amenable number.

21325045324 is a deficient number, since it is larger than the sum of its proper divisors (19694825848).

21325045324 is a wasteful number, since it uses less digits than its factorization.

21325045324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44060037 (or 44060024 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 21325045324 its reverse (42354052312), we get a palindrome (63679097636).

The spelling of 21325045324 in words is "twenty-one billion, three hundred twenty-five million, forty-five thousand, three hundred twenty-four".