13263006321 has 12 divisors (see below), whose sum is σ = 19185409360. Its totient is φ = 8829204120.

The previous prime is 13263006311. The next prime is 13263006343. The reversal of 13263006321 is 12360036231.

It is a happy number.

13263006321 is a `hidden beast` number, since 1 + 3 + 2 + 630 + 0 + 6 + 3 + 21 = 666.

It is not a de Polignac number, because 13263006321 - 2⁶ = 13263006257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13263006311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1060111 + ... + 1072548.

Almost surely, 2^13263006321 is an apocalyptic number.

It is an amenable number.

13263006321 is a deficient number, since it is larger than the sum of its proper divisors (5922403039).

13263006321 is a wasteful number, since it uses less digits than its factorization.

13263006321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133356 (or 2133353 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The spelling of 13263006321 in words is "thirteen billion, two hundred sixty-three million, six thousand, three hundred twenty-one".