12312200033231 has 4 divisors (see below), whose sum is σ = 14071085752272. Its totient is φ = 10553314314192.

The previous prime is 12312200033213. The next prime is 12312200033261. The reversal of 12312200033231 is 13233000221321.

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 12312200033231 - 2¹⁴ = 12312200016847 is a prime.

It is a super-2 number, since 2×12312200033231² (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 = 12312200033197 and 12312200033206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312200033261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879442859510 + ... + 879442859523.

It is an arithmetic number, because the mean of its divisors is an integer number (3517771438068).

Almost surely, 2^{12312200033231} is an apocalyptic number.

12312200033231 is a deficient number, since it is larger than the sum of its proper divisors (1758885719041).

12312200033231 is an equidigital number, since it uses as much as digits as its factorization.

12312200033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758885719040.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12312200033231 its reverse (13233000221321), we get a palindrome (25545200254552).

The spelling of 12312200033231 in words is "twelve trillion, three hundred twelve billion, two hundred million, thirty-three thousand, two hundred thirty-one".