121065143 has 8 divisors (see below), whose sum is σ = 128609712. Its totient is φ = 113567616.

The previous prime is 121065121. The next prime is 121065173. The reversal of 121065143 is 341560121.

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

It is not a de Polignac number, because 121065143 - 2⁶ = 121065079 is a prime.

It is a super-2 number, since 2×121065143² = 29313537699220898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121065173) 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, 6380 + ... + 16817.

It is an arithmetic number, because the mean of its divisors is an integer number (16076214).

Almost surely, 2^121065143 is an apocalyptic number.

121065143 is a deficient number, since it is larger than the sum of its proper divisors (7544569).

121065143 is a wasteful number, since it uses less digits than its factorization.

121065143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23521.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 121065143 is about 11002.9606470259. The cubic root of 121065143 is about 494.6974895507.

The spelling of 121065143 in words is "one hundred twenty-one million, sixty-five thousand, one hundred forty-three".