231303031011 has 48 divisors (see below), whose sum is σ = 361886616000. Its totient is φ = 141517829376.

The previous prime is 231303030977. The next prime is 231303031021. The reversal of 231303031011 is 110130303132.

It is a happy number.

231303031011 is a `hidden beast` number, since 2 + 313 + 0 + 30 + 310 + 11 = 666.

It is not a de Polignac number, because 231303031011 - 2¹⁴ = 231303014627 is a prime.

It is a super-3 number, since 3×231303031011³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (231303031021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39787741 + ... + 39793553.

It is an arithmetic number, because the mean of its divisors is an integer number (7539304500).

Almost surely, 2^231303031011 is an apocalyptic number.

231303031011 is a deficient number, since it is larger than the sum of its proper divisors (130583584989).

231303031011 is a wasteful number, since it uses less digits than its factorization.

231303031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740 (or 7737 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 231303031011 its reverse (110130303132), we get a palindrome (341433334143).

The spelling of 231303031011 in words is "two hundred thirty-one billion, three hundred three million, thirty-one thousand, eleven".