121117263 has 4 divisors (see below), whose sum is σ = 161489688. Its totient is φ = 80744840.

The previous prime is 121117223. The next prime is 121117273. The reversal of 121117263 is 362711121.

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

It is a cyclic number.

It is not a de Polignac number, because 121117263 - 2²² = 116922959 is a prime.

It is a super-2 number, since 2×121117263² = 29338782793222338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121117223) 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, 20186208 + ... + 20186213.

It is an arithmetic number, because the mean of its divisors is an integer number (40372422).

Almost surely, 2^121117263 is an apocalyptic number.

121117263 is a deficient number, since it is larger than the sum of its proper divisors (40372425).

121117263 is an equidigital number, since it uses as much as digits as its factorization.

121117263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40372424.

The product of its digits is 504, while the sum is 24.

The square root of 121117263 is about 11005.3288456093. The cubic root of 121117263 is about 494.7684704385.

Adding to 121117263 its reverse (362711121), we get a palindrome (483828384).

The spelling of 121117263 in words is "one hundred twenty-one million, one hundred seventeen thousand, two hundred sixty-three".