5231101111 has 2 divisors, whose sum is σ = 5231101112. Its totient is φ = 5231101110.

The previous prime is 5231101097. The next prime is 5231101123. The reversal of 5231101111 is 1111011325.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5231101111 - 2¹¹ = 5231099063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5231105111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2615550555 + 2615550556.

It is an arithmetic number, because the mean of its divisors is an integer number (2615550556).

Almost surely, 2^5231101111 is an apocalyptic number.

5231101111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5231101111 is an equidigital number, since it uses as much as digits as its factorization.

5231101111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 5231101111 is about 72326.3514287842. The cubic root of 5231101111 is about 1735.9253215936.

Adding to 5231101111 its reverse (1111011325), we get a palindrome (6342112436).

The spelling of 5231101111 in words is "five billion, two hundred thirty-one million, one hundred one thousand, one hundred eleven".