231404311441 has 4 divisors (see below), whose sum is σ = 233069090800. Its totient is φ = 229739532084.

The previous prime is 231404311433. The next prime is 231404311459. The reversal of 231404311441 is 144113404132.

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 231404311441 - 2³ = 231404311433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231404311471) 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, 832389471 + ... + 832389748.

It is an arithmetic number, because the mean of its divisors is an integer number (58267272700).

Almost surely, 2^231404311441 is an apocalyptic number.

It is an amenable number.

231404311441 is a deficient number, since it is larger than the sum of its proper divisors (1664779359).

231404311441 is a wasteful number, since it uses less digits than its factorization.

231404311441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664779358.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 231404311441 its reverse (144113404132), we get a palindrome (375517715573).

The spelling of 231404311441 in words is "two hundred thirty-one billion, four hundred four million, three hundred eleven thousand, four hundred forty-one".