121113151 has 8 divisors (see below), whose sum is σ = 128360160. Its totient is φ = 113879808.

The previous prime is 121113143. The next prime is 121113199. The reversal of 121113151 is 151311121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121113151 - 2³ = 121113143 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 (121113451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19150 + ... + 24676.

It is an arithmetic number, because the mean of its divisors is an integer number (16045020).

Almost surely, 2^121113151 is an apocalyptic number.

121113151 is a deficient number, since it is larger than the sum of its proper divisors (7247009).

121113151 is a wasteful number, since it uses less digits than its factorization.

121113151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833.

The product of its digits is 30, while the sum is 16.

The square root of 121113151 is about 11005.1420254352. The cubic root of 121113151 is about 494.7628711514.

Adding to 121113151 its reverse (151311121), we get a palindrome (272424272).

The spelling of 121113151 in words is "one hundred twenty-one million, one hundred thirteen thousand, one hundred fifty-one".