231021330001 has 32 divisors (see below), whose sum is σ = 291000418560. Its totient is φ = 178159488000.

The previous prime is 231021329951. The next prime is 231021330073. The reversal of 231021330001 is 100033120132.

It is a cyclic number.

It is not a de Polignac number, because 231021330001 - 2⁷ = 231021329873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231021333001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24951765 + ... + 24961021.

It is an arithmetic number, because the mean of its divisors is an integer number (9093763080).

Almost surely, 2^231021330001 is an apocalyptic number.

It is an amenable number.

231021330001 is a deficient number, since it is larger than the sum of its proper divisors (59979088559).

231021330001 is a wasteful number, since it uses less digits than its factorization.

231021330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12585.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 231021330001 its reverse (100033120132), we get a palindrome (331054450133).

The spelling of 231021330001 in words is "two hundred thirty-one billion, twenty-one million, three hundred thirty thousand, one".