12001111230331 has 4 divisors (see below), whose sum is σ = 12522898675152. Its totient is φ = 11479323785512.

The previous prime is 12001111230319. The next prime is 12001111230397. The reversal of 12001111230331 is 13303211110021.

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 12001111230331 - 2¹⁷ = 12001111099259 is a prime.

It is a super-2 number, since 2×12001111230331² (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 = 12001111230299 and 12001111230308.

It is not an unprimeable number, because it can be changed into a prime (12001114230331) 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, 260893722376 + ... + 260893722421.

It is an arithmetic number, because the mean of its divisors is an integer number (3130724668788).

Almost surely, 2^{12001111230331} is an apocalyptic number.

12001111230331 is a deficient number, since it is larger than the sum of its proper divisors (521787444821).

12001111230331 is an equidigital number, since it uses as much as digits as its factorization.

12001111230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521787444820.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12001111230331 its reverse (13303211110021), we get a palindrome (25304322340352).

The spelling of 12001111230331 in words is "twelve trillion, one billion, one hundred eleven million, two hundred thirty thousand, three hundred thirty-one".