231323310011 has 4 divisors (see below), whose sum is σ = 231330072624. Its totient is φ = 231316547400.

The previous prime is 231323309999. The next prime is 231323310017. The reversal of 231323310011 is 110013323132.

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

It is a cyclic number.

It is not a de Polignac number, because 231323310011 - 2⁶ = 231323309947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231323310017) 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, 3329735 + ... + 3398496.

It is an arithmetic number, because the mean of its divisors is an integer number (57832518156).

Almost surely, 2^231323310011 is an apocalyptic number.

231323310011 is a deficient number, since it is larger than the sum of its proper divisors (6762613).

231323310011 is an equidigital number, since it uses as much as digits as its factorization.

231323310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762612.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231323310011 its reverse (110013323132), we get a palindrome (341336633143).

The spelling of 231323310011 in words is "two hundred thirty-one billion, three hundred twenty-three million, three hundred ten thousand, eleven".