13230302131221 has 16 divisors (see below), whose sum is σ = 20160837001344. Its totient is φ = 7560031417344.

The previous prime is 13230302131217. The next prime is 13230302131313. The reversal of 13230302131221 is 12213120303231.

It is not a de Polignac number, because 13230302131221 - 2² = 13230302131217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13230302131191 and 13230302131200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230302131021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4728340 + ... + 6986973.

It is an arithmetic number, because the mean of its divisors is an integer number (1260052312584).

Almost surely, 2^{13230302131221} is an apocalyptic number.

It is an amenable number.

13230302131221 is a deficient number, since it is larger than the sum of its proper divisors (6930534870123).

13230302131221 is a wasteful number, since it uses less digits than its factorization.

13230302131221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11769100.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13230302131221 its reverse (12213120303231), we get a palindrome (25443422434452).

The spelling of 13230302131221 in words is "thirteen trillion, two hundred thirty billion, three hundred two million, one hundred thirty-one thousand, two hundred twenty-one".