12331213111 has 16 divisors (see below), whose sum is σ = 14155230528. Its totient is φ = 10522886400.

The previous prime is 12331213087. The next prime is 12331213121. The reversal of 12331213111 is 11131213321.

It is a cyclic number.

It is not a de Polignac number, because 12331213111 - 2¹¹ = 12331211063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331213121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2058741 + ... + 2064721.

It is an arithmetic number, because the mean of its divisors is an integer number (884701908).

Almost surely, 2^12331213111 is an apocalyptic number.

12331213111 is a deficient number, since it is larger than the sum of its proper divisors (1824017417).

12331213111 is an equidigital number, since it uses as much as digits as its factorization.

12331213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242.

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

Adding to 12331213111 its reverse (11131213321), we get a palindrome (23462426432).

The spelling of 12331213111 in words is "twelve billion, three hundred thirty-one million, two hundred thirteen thousand, one hundred eleven".