121143107 has 16 divisors (see below), whose sum is σ = 132192000. Its totient is φ = 110638944.

The previous prime is 121143101. The next prime is 121143149. The reversal of 121143107 is 701341121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121143107 - 2⁴ = 121143091 is a prime.

It is a super-3 number, since 3×121143107³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121143101) 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, 58394 + ... + 60432.

It is an arithmetic number, because the mean of its divisors is an integer number (8262000).

Almost surely, 2^121143107 is an apocalyptic number.

121143107 is a deficient number, since it is larger than the sum of its proper divisors (11048893).

121143107 is a wasteful number, since it uses less digits than its factorization.

121143107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 121143107 is about 11006.5029414433. The cubic root of 121143107 is about 494.8036591657.

Adding to 121143107 its reverse (701341121), we get a palindrome (822484228).

The spelling of 121143107 in words is "one hundred twenty-one million, one hundred forty-three thousand, one hundred seven".