111725228057 has 2 divisors, whose sum is σ = 111725228058. Its totient is φ = 111725228056.

The previous prime is 111725228051. The next prime is 111725228071. The reversal of 111725228057 is 750822527111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110881674121 + 843553936 = 332989^2 + 29044^2 .

It is an emirp because it is prime and its reverse (750822527111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111725228057 is a prime.

It is not a weakly prime, because it can be changed into another prime (111725228051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55862614028 + 55862614029.

It is an arithmetic number, because the mean of its divisors is an integer number (55862614029).

Almost surely, 2^111725228057 is an apocalyptic number.

It is an amenable number.

111725228057 is a deficient number, since it is larger than the sum of its proper divisors (1).

111725228057 is an equidigital number, since it uses as much as digits as its factorization.

111725228057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 111725228057 in words is "one hundred eleven billion, seven hundred twenty-five million, two hundred twenty-eight thousand, fifty-seven".