201117053 has 2 divisors, whose sum is σ = 201117054. Its totient is φ = 201117052.

The previous prime is 201117047. The next prime is 201117143. The reversal of 201117053 is 350711102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190081369 + 11035684 = 13787^2 + 3322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201117053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201117023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100558526 + 100558527.

It is an arithmetic number, because the mean of its divisors is an integer number (100558527).

Almost surely, 2^201117053 is an apocalyptic number.

It is an amenable number.

201117053 is a deficient number, since it is larger than the sum of its proper divisors (1).

201117053 is an equidigital number, since it uses as much as digits as its factorization.

201117053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 201117053 is about 14181.5744189423. The cubic root of 201117053 is about 585.8902878316.

Adding to 201117053 its reverse (350711102), we get a palindrome (551828155).

The spelling of 201117053 in words is "two hundred one million, one hundred seventeen thousand, fifty-three".