231011231011 has 16 divisors (see below), whose sum is σ = 254545248096. Its totient is φ = 207900000000.

The previous prime is 231011230973. The next prime is 231011231023. The reversal of 231011231011 is 110132110132.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-231011231011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231011231411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10989511 + ... + 11010511.

It is an arithmetic number, because the mean of its divisors is an integer number (15909078006).

Almost surely, 2^231011231011 is an apocalyptic number.

231011231011 is a deficient number, since it is larger than the sum of its proper divisors (23534017085).

231011231011 is a wasteful number, since it uses less digits than its factorization.

231011231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31014.

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

Adding to 231011231011 its reverse (110132110132), we get a palindrome (341143341143).

The spelling of 231011231011 in words is "two hundred thirty-one billion, eleven million, two hundred thirty-one thousand, eleven".