231120013111 has 8 divisors (see below), whose sum is σ = 248903592224. Its totient is φ = 213337164960.

The previous prime is 231120013087. The next prime is 231120013177. The reversal of 231120013111 is 111310021132.

It is a happy number.

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 231120013111 - 2¹¹ = 231120011063 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 (231120017111) 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, 597310 + ... + 904996.

It is an arithmetic number, because the mean of its divisors is an integer number (31112949028).

Almost surely, 2^231120013111 is an apocalyptic number.

231120013111 is a deficient number, since it is larger than the sum of its proper divisors (17783579113).

231120013111 is a wasteful number, since it uses less digits than its factorization.

231120013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365481.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 231120013111 its reverse (111310021132), we get a palindrome (342430034243).

The spelling of 231120013111 in words is "two hundred thirty-one billion, one hundred twenty million, thirteen thousand, one hundred eleven".