13402032321 has 8 divisors (see below), whose sum is σ = 17876890944. Its totient is φ = 8930930960.

The previous prime is 13402032307. The next prime is 13402032407. The reversal of 13402032321 is 12323020431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13402032321 - 2¹⁴ = 13402015937 is a prime.

It is a super-2 number, since 2×13402032321² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13402032121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930981 + ... + 945266.

It is an arithmetic number, because the mean of its divisors is an integer number (2234611368).

Almost surely, 2^13402032321 is an apocalyptic number.

It is an amenable number.

13402032321 is a deficient number, since it is larger than the sum of its proper divisors (4474858623).

13402032321 is a wasteful number, since it uses less digits than its factorization.

13402032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878631.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13402032321 its reverse (12323020431), we get a palindrome (25725052752).

The spelling of 13402032321 in words is "thirteen billion, four hundred two million, thirty-two thousand, three hundred twenty-one".