111214043431 has 16 divisors (see below), whose sum is σ = 113408954560. Its totient is φ = 109038182400.

The previous prime is 111214043417. The next prime is 111214043441. The reversal of 111214043431 is 134340412111.

It is a cyclic number.

It is not a de Polignac number, because 111214043431 - 2¹⁹ = 111213519143 is a prime.

It is a super-2 number, since 2×111214043431² (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 = 111214043396 and 111214043405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111214043411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26471131 + ... + 26475331.

It is an arithmetic number, because the mean of its divisors is an integer number (7088059660).

Almost surely, 2^111214043431 is an apocalyptic number.

111214043431 is a deficient number, since it is larger than the sum of its proper divisors (2194911129).

111214043431 is a wasteful number, since it uses less digits than its factorization.

111214043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346.

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

Adding to 111214043431 its reverse (134340412111), we get a palindrome (245554455542).

The spelling of 111214043431 in words is "one hundred eleven billion, two hundred fourteen million, forty-three thousand, four hundred thirty-one".