13312230121231 has 4 divisors (see below), whose sum is σ = 13364028682272. Its totient is φ = 13260431560192.

The previous prime is 13312230121213. The next prime is 13312230121237. The reversal of 13312230121231 is 13212103221331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13312230121231 - 2¹¹ = 13312230119183 is a prime.

It is a super-2 number, since 2×13312230121231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13312230121196 and 13312230121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312230121237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25899280135 + ... + 25899280648.

It is an arithmetic number, because the mean of its divisors is an integer number (3341007170568).

Almost surely, 2^{13312230121231} is an apocalyptic number.

13312230121231 is a deficient number, since it is larger than the sum of its proper divisors (51798561041).

13312230121231 is an equidigital number, since it uses as much as digits as its factorization.

13312230121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51798561040.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 13312230121231 its reverse (13212103221331), we get a palindrome (26524333342562).

The spelling of 13312230121231 in words is "thirteen trillion, three hundred twelve billion, two hundred thirty million, one hundred twenty-one thousand, two hundred thirty-one".