121100117 has 2 divisors, whose sum is σ = 121100118. Its totient is φ = 121100116.

The previous prime is 121100107. The next prime is 121100131. The reversal of 121100117 is 711001121.

It is an a-pointer prime, because the next prime (121100131) can be obtained adding 121100117 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116942596 + 4157521 = 10814^2 + 2039^2 .

It is an emirp because it is prime and its reverse (711001121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121100107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550058 + 60550059.

It is an arithmetic number, because the mean of its divisors is an integer number (60550059).

Almost surely, 2^121100117 is an apocalyptic number.

It is an amenable number.

121100117 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100117 is an equidigital number, since it uses as much as digits as its factorization.

121100117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 121100117 is about 11004.5498317741. The cubic root of 121100117 is about 494.7451219900.

Adding to 121100117 its reverse (711001121), we get a palindrome (832101238).

The spelling of 121100117 in words is "one hundred twenty-one million, one hundred thousand, one hundred seventeen".