231350135111 has 4 divisors (see below), whose sum is σ = 231352153032. Its totient is φ = 231348117192.

The previous prime is 231350135087. The next prime is 231350135207. The reversal of 231350135111 is 111531053132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231350135111 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 (231350135311) 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, 825920 + ... + 1069973.

It is an arithmetic number, because the mean of its divisors is an integer number (57838038258).

Almost surely, 2^231350135111 is an apocalyptic number.

231350135111 is a deficient number, since it is larger than the sum of its proper divisors (2017921).

231350135111 is a wasteful number, since it uses less digits than its factorization.

231350135111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017920.

The product of its (nonzero) digits is 1350, while the sum is 26.

Adding to 231350135111 its reverse (111531053132), we get a palindrome (342881188243).

The spelling of 231350135111 in words is "two hundred thirty-one billion, three hundred fifty million, one hundred thirty-five thousand, one hundred eleven".