13012033231 has 2 divisors, whose sum is σ = 13012033232. Its totient is φ = 13012033230.

The previous prime is 13012033213. The next prime is 13012033241. The reversal of 13012033231 is 13233021031.

Together with previous prime (13012033213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13012033231 is a prime.

It is a super-2 number, since 2×13012033231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13012033199 and 13012033208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13012033241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6506016615 + 6506016616.

It is an arithmetic number, because the mean of its divisors is an integer number (6506016616).

Almost surely, 2^13012033231 is an apocalyptic number.

13012033231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13012033231 is an equidigital number, since it uses as much as digits as its factorization.

13012033231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13012033231 its reverse (13233021031), we get a palindrome (26245054262).

The spelling of 13012033231 in words is "thirteen billion, twelve million, thirty-three thousand, two hundred thirty-one".