231211312401 has 8 divisors (see below), whose sum is σ = 308284051680. Its totient is φ = 154139724032.

The previous prime is 231211312313. The next prime is 231211312403. The reversal of 231211312401 is 104213112132.

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

It is a cyclic number.

It is not a de Polignac number, because 231211312401 - 2⁹ = 231211311889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231211312403) 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, 454705 + ... + 818033.

It is an arithmetic number, because the mean of its divisors is an integer number (38535506460).

Almost surely, 2^231211312401 is an apocalyptic number.

It is an amenable number.

231211312401 is a deficient number, since it is larger than the sum of its proper divisors (77072739279).

231211312401 is a wasteful number, since it uses less digits than its factorization.

231211312401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575455.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 231211312401 its reverse (104213112132), we get a palindrome (335424424533).

The spelling of 231211312401 in words is "two hundred thirty-one billion, two hundred eleven million, three hundred twelve thousand, four hundred one".