111421432231 has 8 divisors (see below), whose sum is σ = 116340456960. Its totient is φ = 106508625432.

The previous prime is 111421432229. The next prime is 111421432267. The reversal of 111421432231 is 132234124111.

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 111421432231 - 2¹ = 111421432229 is a prime.

It is a super-2 number, since 2×111421432231² (a number of 23 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 = 111421432196 and 111421432205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111421432211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517835 + ... + 1589548.

It is an arithmetic number, because the mean of its divisors is an integer number (14542557120).

Almost surely, 2^111421432231 is an apocalyptic number.

111421432231 is a deficient number, since it is larger than the sum of its proper divisors (4919024729).

111421432231 is a wasteful number, since it uses less digits than its factorization.

111421432231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108965.

The product of its digits is 1152, while the sum is 25.

Adding to 111421432231 its reverse (132234124111), we get a palindrome (243655556342).

The spelling of 111421432231 in words is "one hundred eleven billion, four hundred twenty-one million, four hundred thirty-two thousand, two hundred thirty-one".