111131012347 has 2 divisors, whose sum is σ = 111131012348. Its totient is φ = 111131012346.

The previous prime is 111131012269. The next prime is 111131012359. The reversal of 111131012347 is 743210131111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111131012347 - 2³¹ = 108983528699 is a prime.

It is not a weakly prime, because it can be changed into another prime (111137012347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55565506173 + 55565506174.

It is an arithmetic number, because the mean of its divisors is an integer number (55565506174).

Almost surely, 2^111131012347 is an apocalyptic number.

111131012347 is a deficient number, since it is larger than the sum of its proper divisors (1).

111131012347 is an equidigital number, since it uses as much as digits as its factorization.

111131012347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 111131012347 its reverse (743210131111), we get a palindrome (854341143458).

The spelling of 111131012347 in words is "one hundred eleven billion, one hundred thirty-one million, twelve thousand, three hundred forty-seven".