201111101001157 has 2 divisors, whose sum is σ = 201111101001158. Its totient is φ = 201111101001156.

The previous prime is 201111101001119. The next prime is 201111101001229. The reversal of 201111101001157 is 751100101111102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201047046959236 + 64054041921 = 14179106^2 + 253089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201111101001157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201111101001257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555550500578 + 100555550500579.

It is an arithmetic number, because the mean of its divisors is an integer number (100555550500579).

Almost surely, 2^{201111101001157} is an apocalyptic number.

It is an amenable number.

201111101001157 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111101001157 is an equidigital number, since it uses as much as digits as its factorization.

201111101001157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70, while the sum is 22.

Adding to 201111101001157 its reverse (751100101111102), we get a palindrome (952211202112259).

The spelling of 201111101001157 in words is "two hundred one trillion, one hundred eleven billion, one hundred one million, one thousand, one hundred fifty-seven".