111212230331 has 8 divisors (see below), whose sum is σ = 115703660544. Its totient is φ = 106777296360.

The previous prime is 111212230321. The next prime is 111212230391. The reversal of 111212230331 is 133032212111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111212230331 - 2¹⁴ = 111212213947 is a prime.

It is a super-2 number, since 2×111212230331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111212230321) 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 7 ways as a sum of consecutive naturals, for example, 14120045 + ... + 14127918.

It is an arithmetic number, because the mean of its divisors is an integer number (14462957568).

Almost surely, 2^111212230331 is an apocalyptic number.

111212230331 is a deficient number, since it is larger than the sum of its proper divisors (4491430213).

111212230331 is a wasteful number, since it uses less digits than its factorization.

111212230331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28248121.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111212230331 its reverse (133032212111), we get a palindrome (244244442442).

The spelling of 111212230331 in words is "one hundred eleven billion, two hundred twelve million, two hundred thirty thousand, three hundred thirty-one".