121136011 has 4 divisors (see below), whose sum is σ = 122842224. Its totient is φ = 119429800.

The previous prime is 121135997. The next prime is 121136047. The reversal of 121136011 is 110631121.

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 121136011 - 2⁹ = 121135499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121136051) 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, 853000 + ... + 853141.

It is an arithmetic number, because the mean of its divisors is an integer number (30710556).

Almost surely, 2^121136011 is an apocalyptic number.

121136011 is a deficient number, since it is larger than the sum of its proper divisors (1706213).

121136011 is an equidigital number, since it uses as much as digits as its factorization.

121136011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706212.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 121136011 is about 11006.1805818367. The cubic root of 121136011 is about 494.7939978777.

Adding to 121136011 its reverse (110631121), we get a palindrome (231767132).

The spelling of 121136011 in words is "one hundred twenty-one million, one hundred thirty-six thousand, eleven".