231323031011 has 8 divisors (see below), whose sum is σ = 243691358400. Its totient is φ = 218974046760.

The previous prime is 231323030993. The next prime is 231323031041. The reversal of 231323031011 is 110130323132.

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 231323031011 - 2⁶ = 231323030947 is a prime.

It is a super-2 number, since 2×231323031011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231323031041) 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, 4811225 + ... + 4859066.

It is an arithmetic number, because the mean of its divisors is an integer number (30461419800).

Almost surely, 2^231323031011 is an apocalyptic number.

231323031011 is a deficient number, since it is larger than the sum of its proper divisors (12368327389).

231323031011 is a wasteful number, since it uses less digits than its factorization.

231323031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671569.

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

Adding to 231323031011 its reverse (110130323132), we get a palindrome (341453354143).

The spelling of 231323031011 in words is "two hundred thirty-one billion, three hundred twenty-three million, thirty-one thousand, eleven".