431142140121 has 64 divisors (see below), whose sum is σ = 741737779200. Its totient is φ = 216153504000.

The previous prime is 431142140113. The next prime is 431142140131. The reversal of 431142140121 is 121041241134.

It is a happy number.

It is not a de Polignac number, because 431142140121 - 2³ = 431142140113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431142140091 and 431142140100.

It is not an unprimeable number, because it can be changed into a prime (431142140131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17076535 + ... + 17101763.

It is an arithmetic number, because the mean of its divisors is an integer number (11589652800).

Almost surely, 2^431142140121 is an apocalyptic number.

It is an amenable number.

431142140121 is a deficient number, since it is larger than the sum of its proper divisors (310595639079).

431142140121 is a wasteful number, since it uses less digits than its factorization.

431142140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27830.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 431142140121 its reverse (121041241134), we get a palindrome (552183381255).

The spelling of 431142140121 in words is "four hundred thirty-one billion, one hundred forty-two million, one hundred forty thousand, one hundred twenty-one".