231241221201 has 8 divisors (see below), whose sum is σ = 314881663104. Its totient is φ = 150880796720.

The previous prime is 231241221179. The next prime is 231241221203. The reversal of 231241221201 is 102122142132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231241221201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231241221203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820004190 + ... + 820004471.

It is an arithmetic number, because the mean of its divisors is an integer number (39360207888).

Almost surely, 2^231241221201 is an apocalyptic number.

It is an amenable number.

231241221201 is a deficient number, since it is larger than the sum of its proper divisors (83640441903).

231241221201 is a wasteful number, since it uses less digits than its factorization.

231241221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640008711.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 231241221201 its reverse (102122142132), we get a palindrome (333363363333).

The spelling of 231241221201 in words is "two hundred thirty-one billion, two hundred forty-one million, two hundred twenty-one thousand, two hundred one".