111341431 has 2 divisors, whose sum is σ = 111341432. Its totient is φ = 111341430.

The previous prime is 111341423. The next prime is 111341441. The reversal of 111341431 is 134143111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111341431 - 2³ = 111341423 is a prime.

It is a super-2 number, since 2×111341431² = 24793828514255522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111341399 and 111341408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111341441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55670715 + 55670716.

It is an arithmetic number, because the mean of its divisors is an integer number (55670716).

Almost surely, 2^111341431 is an apocalyptic number.

111341431 is a deficient number, since it is larger than the sum of its proper divisors (1).

111341431 is an equidigital number, since it uses as much as digits as its factorization.

111341431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 111341431 is about 10551.8449097776. The cubic root of 111341431 is about 481.0818062717.

Adding to 111341431 its reverse (134143111), we get a palindrome (245484542).

It can be divided in two parts, 11 and 1341431, that multiplied together give a palindrome (14755741).

The spelling of 111341431 in words is "one hundred eleven million, three hundred forty-one thousand, four hundred thirty-one".