255143032151121 has 16 divisors (see below), whose sum is σ = 377992310115520. Its totient is φ = 170094169982880.

The previous prime is 255143032151107. The next prime is 255143032151143. The reversal of 255143032151121 is 121151230341552.

255143032151121 is a `hidden beast` number, since 2 + 5 + 5 + 1 + 430 + 3 + 215 + 1 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 255143032151121 - 2²⁶ = 255142965042257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255143032151171) 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, 28953955 + ... + 36723528.

It is an arithmetic number, because the mean of its divisors is an integer number (23624519382220).

Almost surely, 2^{255143032151121} is an apocalyptic number.

It is an amenable number.

255143032151121 is a deficient number, since it is larger than the sum of its proper divisors (122849277964399).

255143032151121 is a wasteful number, since it uses less digits than its factorization.

255143032151121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65821373 (or 65821367 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 255143032151121 its reverse (121151230341552), we get a palindrome (376294262492673).

The spelling of 255143032151121 in words is "two hundred fifty-five trillion, one hundred forty-three billion, thirty-two million, one hundred fifty-one thousand, one hundred twenty-one".