231101001001 has 16 divisors (see below), whose sum is σ = 265565587840. Its totient is φ = 199327962240.

The previous prime is 231101000983. The next prime is 231101001071. The reversal of 231101001001 is 100100101132.

It is a cyclic number.

It is not a de Polignac number, because 231101001001 - 2¹³ = 231100992809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231101001071) 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, 6390405 + ... + 6426466.

It is an arithmetic number, because the mean of its divisors is an integer number (16597849240).

Almost surely, 2^231101001001 is an apocalyptic number.

It is an amenable number.

231101001001 is a deficient number, since it is larger than the sum of its proper divisors (34464586839).

231101001001 is a wasteful number, since it uses less digits than its factorization.

231101001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816976.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 231101001001 its reverse (100100101132), we get a palindrome (331201102133).

The spelling of 231101001001 in words is "two hundred thirty-one billion, one hundred one million, one thousand, one".