111231061057 has 2 divisors, whose sum is σ = 111231061058. Its totient is φ = 111231061056.

The previous prime is 111231061043. The next prime is 111231061063. The reversal of 111231061057 is 750160132111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107630581041 + 3600480016 = 328071^2 + 60004^2 .

It is a cyclic number.

It is not a de Polignac number, because 111231061057 - 2⁷ = 111231060929 is a prime.

It is not a weakly prime, because it can be changed into another prime (111231041057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55615530528 + 55615530529.

It is an arithmetic number, because the mean of its divisors is an integer number (55615530529).

Almost surely, 2^111231061057 is an apocalyptic number.

It is an amenable number.

111231061057 is a deficient number, since it is larger than the sum of its proper divisors (1).

111231061057 is an equidigital number, since it uses as much as digits as its factorization.

111231061057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 111231061057 its reverse (750160132111), we get a palindrome (861391193168).

The spelling of 111231061057 in words is "one hundred eleven billion, two hundred thirty-one million, sixty-one thousand, fifty-seven".