231121010 has 16 divisors (see below), whose sum is σ = 430363800. Its totient is φ = 89260416.

The previous prime is 231120983. The next prime is 231121013. The reversal of 231121010 is 10121132.

231121010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 198161929 + 32959081 = 14077^2 + 5741^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231120982 and 231121000.

It is not an unprimeable number, because it can be changed into a prime (231121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398195 + ... + 398774.

Almost surely, 2^231121010 is an apocalyptic number.

231121010 is a deficient number, since it is larger than the sum of its proper divisors (199242790).

231121010 is a wasteful number, since it uses less digits than its factorization.

231121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797005.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 231121010 is about 15202.6645690813. The cubic root of 231121010 is about 613.6863670006.

Adding to 231121010 its reverse (10121132), we get a palindrome (241242142).

The spelling of 231121010 in words is "two hundred thirty-one million, one hundred twenty-one thousand, ten".