111424143431 has 2 divisors, whose sum is σ = 111424143432. Its totient is φ = 111424143430.

The previous prime is 111424143401. The next prime is 111424143461. The reversal of 111424143431 is 134341424111.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (111424143401) and next prime (111424143461).

It is a cyclic number.

It is not a de Polignac number, because 111424143431 - 2⁶ = 111424143367 is a prime.

It is a super-2 number, since 2×111424143431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111424143394 and 111424143403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111424143401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55712071715 + 55712071716.

It is an arithmetic number, because the mean of its divisors is an integer number (55712071716).

Almost surely, 2^111424143431 is an apocalyptic number.

111424143431 is a deficient number, since it is larger than the sum of its proper divisors (1).

111424143431 is an equidigital number, since it uses as much as digits as its factorization.

111424143431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 29.

Adding to 111424143431 its reverse (134341424111), we get a palindrome (245765567542).

The spelling of 111424143431 in words is "one hundred eleven billion, four hundred twenty-four million, one hundred forty-three thousand, four hundred thirty-one".