121143141123 has 16 divisors (see below), whose sum is σ = 163079205120. Its totient is φ = 79985006816.

The previous prime is 121143141107. The next prime is 121143141149. The reversal of 121143141123 is 321141341121.

It is a cyclic number.

It is not a de Polignac number, because 121143141123 - 2⁴ = 121143141107 is a prime.

It is a super-3 number, since 3×121143141123³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 121143141093 and 121143141102.

It is not an unprimeable number, because it can be changed into a prime (121143141173) 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, 1143061 + ... + 1244537.

It is an arithmetic number, because the mean of its divisors is an integer number (10192450320).

Almost surely, 2^121143141123 is an apocalyptic number.

121143141123 is a deficient number, since it is larger than the sum of its proper divisors (41936063997).

121143141123 is a wasteful number, since it uses less digits than its factorization.

121143141123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105306.

The product of its digits is 576, while the sum is 24.

Adding to 121143141123 its reverse (321141341121), we get a palindrome (442284482244).

The spelling of 121143141123 in words is "one hundred twenty-one billion, one hundred forty-three million, one hundred forty-one thousand, one hundred twenty-three".