231230021111111 has 8 divisors (see below), whose sum is σ = 252251075796624. Its totient is φ = 210208990371520.

The previous prime is 231230021111107. The next prime is 231230021111113. The reversal of 231230021111111 is 111111120032132.

231230021111111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231230021111111 - 2² = 231230021111107 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 (231230021111113) 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, 18591245 + ... + 28427001.

It is an arithmetic number, because the mean of its divisors is an integer number (31531384474578).

Almost surely, 2^{231230021111111} is an apocalyptic number.

231230021111111 is a deficient number, since it is larger than the sum of its proper divisors (21021054685513).

231230021111111 is a wasteful number, since it uses less digits than its factorization.

231230021111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11972961.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 231230021111111 its reverse (111111120032132), we get a palindrome (342341141143243).

The spelling of 231230021111111 in words is "two hundred thirty-one trillion, two hundred thirty billion, twenty-one million, one hundred eleven thousand, one hundred eleven".