111322231231 has 8 divisors (see below), whose sum is σ = 117874989504. Its totient is φ = 104769960960.

The previous prime is 111322231201. The next prime is 111322231277. The reversal of 111322231231 is 132132223111.

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

It is not a de Polignac number, because 111322231231 - 2¹⁹ = 111321706943 is a prime.

It is a super-2 number, since 2×111322231231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111322231201) 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, 415311 + ... + 628591.

It is an arithmetic number, because the mean of its divisors is an integer number (14734373688).

Almost surely, 2^111322231231 is an apocalyptic number.

111322231231 is a deficient number, since it is larger than the sum of its proper divisors (6552758273).

111322231231 is a wasteful number, since it uses less digits than its factorization.

111322231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244001.

The product of its digits is 432, while the sum is 22.

Adding to 111322231231 its reverse (132132223111), we get a palindrome (243454454342).

The spelling of 111322231231 in words is "one hundred eleven billion, three hundred twenty-two million, two hundred thirty-one thousand, two hundred thirty-one".