231041011 has 4 divisors (see below), whose sum is σ = 231590224. Its totient is φ = 230491800.

The previous prime is 231040973. The next prime is 231041059. The reversal of 231041011 is 110140132.

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 231041011 - 2¹¹ = 231038963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231040982 and 231041000.

It is not an unprimeable number, because it can be changed into a prime (231041081) 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, 273975 + ... + 274816.

It is an arithmetic number, because the mean of its divisors is an integer number (57897556).

Almost surely, 2^231041011 is an apocalyptic number.

231041011 is a deficient number, since it is larger than the sum of its proper divisors (549213).

231041011 is an equidigital number, since it uses as much as digits as its factorization.

231041011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549212.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 231041011 is about 15200.0332565426. The cubic root of 231041011 is about 613.6155527820.

Adding to 231041011 its reverse (110140132), we get a palindrome (341181143).

The spelling of 231041011 in words is "two hundred thirty-one million, forty-one thousand, eleven".