231443011135 has 16 divisors (see below), whose sum is σ = 327646513152. Its totient is φ = 153584301600.

The previous prime is 231443011117. The next prime is 231443011211. The reversal of 231443011135 is 531110344132.

It is not a de Polignac number, because 231443011135 - 2²¹ = 231440913983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106654681 + ... + 106656850.

It is an arithmetic number, because the mean of its divisors is an integer number (20477907072).

Almost surely, 2^231443011135 is an apocalyptic number.

231443011135 is a deficient number, since it is larger than the sum of its proper divisors (96203502017).

231443011135 is a wasteful number, since it uses less digits than its factorization.

231443011135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213311574.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 231443011135 its reverse (531110344132), we get a palindrome (762553355267).

The spelling of 231443011135 in words is "two hundred thirty-one billion, four hundred forty-three million, eleven thousand, one hundred thirty-five".