231133102221001 has 4 divisors (see below), whose sum is σ = 231133315370752. Its totient is φ = 231132889071252.

The previous prime is 231133102220987. The next prime is 231133102221013. The reversal of 231133102221001 is 100122201331132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231133102221001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231133102021001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104939961 + ... + 107119846.

It is an arithmetic number, because the mean of its divisors is an integer number (57783328842688).

Almost surely, 2^{231133102221001} is an apocalyptic number.

It is an amenable number.

231133102221001 is a deficient number, since it is larger than the sum of its proper divisors (213149751).

231133102221001 is a wasteful number, since it uses less digits than its factorization.

231133102221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213149750.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 231133102221001 its reverse (100122201331132), we get a palindrome (331255303552133).

The spelling of 231133102221001 in words is "two hundred thirty-one trillion, one hundred thirty-three billion, one hundred two million, two hundred twenty-one thousand, one".