111325325161 has 2 divisors, whose sum is σ = 111325325162. Its totient is φ = 111325325160.

The previous prime is 111325325003. The next prime is 111325325171. The reversal of 111325325161 is 161523523111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110439905625 + 885419536 = 332325^2 + 29756^2 .

It is a cyclic number.

It is not a de Polignac number, because 111325325161 - 2²⁵ = 111291770729 is a prime.

It is not a weakly prime, because it can be changed into another prime (111325325171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55662662580 + 55662662581.

It is an arithmetic number, because the mean of its divisors is an integer number (55662662581).

Almost surely, 2^111325325161 is an apocalyptic number.

It is an amenable number.

111325325161 is a deficient number, since it is larger than the sum of its proper divisors (1).

111325325161 is an equidigital number, since it uses as much as digits as its factorization.

111325325161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 31.

Adding to 111325325161 its reverse (161523523111), we get a palindrome (272848848272).

The spelling of 111325325161 in words is "one hundred eleven billion, three hundred twenty-five million, three hundred twenty-five thousand, one hundred sixty-one".