231243424011 has 12 divisors (see below), whose sum is σ = 334811677200. Its totient is φ = 153796098960.

The previous prime is 231243424003. The next prime is 231243424031. The reversal of 231243424011 is 110424342132.

231243424011 is a `hidden beast` number, since 2 + 312 + 4 + 342 + 4 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 231243424011 - 2³ = 231243424003 is a prime.

It is a super-2 number, since 2×231243424011² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231243424031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30511311 + ... + 30518888.

It is an arithmetic number, because the mean of its divisors is an integer number (27900973100).

Almost surely, 2^231243424011 is an apocalyptic number.

231243424011 is a deficient number, since it is larger than the sum of its proper divisors (103568253189).

231243424011 is a wasteful number, since it uses less digits than its factorization.

231243424011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61030626 (or 61030623 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 231243424011 its reverse (110424342132), we get a palindrome (341667766143).

The spelling of 231243424011 in words is "two hundred thirty-one billion, two hundred forty-three million, four hundred twenty-four thousand, eleven".