12111112332331 has 4 divisors (see below), whose sum is σ = 12228695947312. Its totient is φ = 11993528717352.

The previous prime is 12111112332323. The next prime is 12111112332409. The reversal of 12111112332331 is 13323321111121.

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 12111112332331 - 2³ = 12111112332323 is a prime.

It is a super-2 number, since 2×12111112332331² (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 = 12111112332296 and 12111112332305.

It is not an unprimeable number, because it can be changed into a prime (12111112332931) 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, 58791807336 + ... + 58791807541.

It is an arithmetic number, because the mean of its divisors is an integer number (3057173986828).

Almost surely, 2^{12111112332331} is an apocalyptic number.

12111112332331 is a deficient number, since it is larger than the sum of its proper divisors (117583614981).

12111112332331 is a wasteful number, since it uses less digits than its factorization.

12111112332331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117583614980.

The product of its digits is 648, while the sum is 25.

Adding to 12111112332331 its reverse (13323321111121), we get a palindrome (25434433443452).

The spelling of 12111112332331 in words is "twelve trillion, one hundred eleven billion, one hundred twelve million, three hundred thirty-two thousand, three hundred thirty-one".