121118263 has 4 divisors (see below), whose sum is σ = 138420880. Its totient is φ = 103815648.

The previous prime is 121118243. The next prime is 121118267. The reversal of 121118263 is 362811121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121118263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121118267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651298 + ... + 8651311.

It is an arithmetic number, because the mean of its divisors is an integer number (34605220).

Almost surely, 2^121118263 is an apocalyptic number.

121118263 is a deficient number, since it is larger than the sum of its proper divisors (17302617).

121118263 is an equidigital number, since it uses as much as digits as its factorization.

121118263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17302616.

The product of its digits is 576, while the sum is 25.

The square root of 121118263 is about 11005.3742780516. The cubic root of 121118263 is about 494.7698321137.

Adding to 121118263 its reverse (362811121), we get a palindrome (483929384).

The spelling of 121118263 in words is "one hundred twenty-one million, one hundred eighteen thousand, two hundred sixty-three".