231220212041 has 16 divisors (see below), whose sum is σ = 287189548800. Its totient is φ = 181265076288.

The previous prime is 231220212007. The next prime is 231220212043. The reversal of 231220212041 is 140212022132.

It is a cyclic number.

It is not a de Polignac number, because 231220212041 - 2²⁶ = 231153103177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231220212043) 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, 11645501 + ... + 11665338.

It is an arithmetic number, because the mean of its divisors is an integer number (17949346800).

Almost surely, 2^231220212041 is an apocalyptic number.

It is an amenable number.

231220212041 is a deficient number, since it is larger than the sum of its proper divisors (55969336759).

231220212041 is a wasteful number, since it uses less digits than its factorization.

231220212041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23310968.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 231220212041 its reverse (140212022132), we get a palindrome (371432234173).

The spelling of 231220212041 in words is "two hundred thirty-one billion, two hundred twenty million, two hundred twelve thousand, forty-one".