13012023321 has 12 divisors (see below), whose sum is σ = 20503794480. Its totient is φ = 7886074680.

The previous prime is 13012023317. The next prime is 13012023361. The reversal of 13012023321 is 12332021031.

13012023321 is a `hidden beast` number, since 1 + 301 + 20 + 23 + 321 = 666.

It is not a de Polignac number, because 13012023321 - 2² = 13012023317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13012023294 and 13012023303.

It is not an unprimeable number, because it can be changed into a prime (13012023361) 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, 65717191 + ... + 65717388.

It is an arithmetic number, because the mean of its divisors is an integer number (1708649540).

Almost surely, 2^13012023321 is an apocalyptic number.

13012023321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13012023321 is a deficient number, since it is larger than the sum of its proper divisors (7491771159).

13012023321 is a wasteful number, since it uses less digits than its factorization.

13012023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131434596 (or 131434593 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13012023321 its reverse (12332021031), we get a palindrome (25344044352).

The spelling of 13012023321 in words is "thirteen billion, twelve million, twenty-three thousand, three hundred twenty-one".