21470401324 has 6 divisors (see below), whose sum is σ = 37573202324. Its totient is φ = 10735200660.

The previous prime is 21470401241. The next prime is 21470401339. The reversal of 21470401324 is 42310407412.

It is a junction number, because it is equal to n+sod(n) for n = 21470401292 and 21470401301.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2683800162 + ... + 2683800169.

Almost surely, 2^21470401324 is an apocalyptic number.

It is an amenable number.

21470401324 is a deficient number, since it is larger than the sum of its proper divisors (16102801000).

21470401324 is a wasteful number, since it uses less digits than its factorization.

21470401324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367600335 (or 5367600333 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 21470401324 its reverse (42310407412), we get a palindrome (63780808736).

The spelling of 21470401324 in words is "twenty-one billion, four hundred seventy million, four hundred one thousand, three hundred twenty-four".