231220041 has 16 divisors (see below), whose sum is σ = 342720000. Its totient is φ = 137698560.

The previous prime is 231220027. The next prime is 231220057. The reversal of 231220041 is 140022132.

It is not a de Polignac number, because 231220041 - 2⁷ = 231219913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231220041.

It is not an unprimeable number, because it can be changed into a prime (231220001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94416 + ... + 96833.

It is an arithmetic number, because the mean of its divisors is an integer number (21420000).

Almost surely, 2^231220041 is an apocalyptic number.

It is an amenable number.

231220041 is a deficient number, since it is larger than the sum of its proper divisors (111499959).

231220041 is a wasteful number, since it uses less digits than its factorization.

231220041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191296.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 231220041 is about 15205.9212479876. The cubic root of 231220041 is about 613.7740055015.

Adding to 231220041 its reverse (140022132), we get a palindrome (371242173).

The spelling of 231220041 in words is "two hundred thirty-one million, two hundred twenty thousand, forty-one".