231403133111 has 8 divisors (see below), whose sum is σ = 243590161200. Its totient is φ = 219216896640.

The previous prime is 231403133089. The next prime is 231403133141. The reversal of 231403133111 is 111331304132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231403133111 - 2¹⁸ = 231402870967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231403133141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457871 + ... + 820031.

It is an arithmetic number, because the mean of its divisors is an integer number (30448770150).

Almost surely, 2^231403133111 is an apocalyptic number.

231403133111 is a deficient number, since it is larger than the sum of its proper divisors (12187028089).

231403133111 is a wasteful number, since it uses less digits than its factorization.

231403133111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395809.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231403133111 its reverse (111331304132), we get a palindrome (342734437243).

The spelling of 231403133111 in words is "two hundred thirty-one billion, four hundred three million, one hundred thirty-three thousand, one hundred eleven".