231020420141 has 4 divisors (see below), whose sum is σ = 264023337312. Its totient is φ = 198017502972.

The previous prime is 231020420131. The next prime is 231020420153. The reversal of 231020420141 is 141024020132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231020420141 - 2³⁰ = 229946678317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231020420131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16501458575 + ... + 16501458588.

It is an arithmetic number, because the mean of its divisors is an integer number (66005834328).

Almost surely, 2^231020420141 is an apocalyptic number.

It is an amenable number.

231020420141 is a deficient number, since it is larger than the sum of its proper divisors (33002917171).

231020420141 is an equidigital number, since it uses as much as digits as its factorization.

231020420141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33002917170.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 231020420141 its reverse (141024020132), we get a palindrome (372044440273).

The spelling of 231020420141 in words is "two hundred thirty-one billion, twenty million, four hundred twenty thousand, one hundred forty-one".