121432042143 has 24 divisors (see below), whose sum is σ = 176057402976. Its totient is φ = 80652427200.

The previous prime is 121432042141. The next prime is 121432042153. The reversal of 121432042143 is 341240234121.

121432042143 is a `hidden beast` number, since 1 + 214 + 3 + 20 + 421 + 4 + 3 = 666.

It is not a de Polignac number, because 121432042143 - 2¹ = 121432042141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121432042141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5297998 + ... + 5320868.

It is an arithmetic number, because the mean of its divisors is an integer number (7335725124).

Almost surely, 2^121432042143 is an apocalyptic number.

121432042143 is a deficient number, since it is larger than the sum of its proper divisors (54625360833).

121432042143 is a wasteful number, since it uses less digits than its factorization.

121432042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25055 (or 25052 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121432042143 its reverse (341240234121), we get a palindrome (462672276264).

The spelling of 121432042143 in words is "one hundred twenty-one billion, four hundred thirty-two million, forty-two thousand, one hundred forty-three".