231431401111 has 8 divisors (see below), whose sum is σ = 233987583024. Its totient is φ = 228880411200.

The previous prime is 231431401099. The next prime is 231431401133. The reversal of 231431401111 is 111104134132.

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 231431401111 - 2⁷ = 231431400983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231431401141) 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, 1208326 + ... + 1386691.

It is an arithmetic number, because the mean of its divisors is an integer number (29248447878).

Almost surely, 2^231431401111 is an apocalyptic number.

231431401111 is a deficient number, since it is larger than the sum of its proper divisors (2556181913).

231431401111 is a wasteful number, since it uses less digits than its factorization.

231431401111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596001.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 231431401111 its reverse (111104134132), we get a palindrome (342535535243).

The spelling of 231431401111 in words is "two hundred thirty-one billion, four hundred thirty-one million, four hundred one thousand, one hundred eleven".