121131017 has 16 divisors (see below), whose sum is σ = 141781632. Its totient is φ = 101347200.

The previous prime is 121131011. The next prime is 121131019. The reversal of 121131017 is 710131121.

It is a cyclic number.

It is not a de Polignac number, because 121131017 - 2²² = 116936713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121130986 and 121131004.

It is not an unprimeable number, because it can be changed into a prime (121131011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50438 + ... + 52784.

It is an arithmetic number, because the mean of its divisors is an integer number (8861352).

Almost surely, 2^121131017 is an apocalyptic number.

It is an amenable number.

121131017 is a deficient number, since it is larger than the sum of its proper divisors (20650615).

121131017 is a wasteful number, since it uses less digits than its factorization.

121131017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 121131017 is about 11005.9537069715. The cubic root of 121131017 is about 494.7871982615.

Adding to 121131017 its reverse (710131121), we get a palindrome (831262138).

The spelling of 121131017 in words is "one hundred twenty-one million, one hundred thirty-one thousand, seventeen".