20001313233001 has 4 divisors (see below), whose sum is σ = 20033011035904. Its totient is φ = 19969615430100.

The previous prime is 20001313232981. The next prime is 20001313233007. The reversal of 20001313233001 is 10033231310002.

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 not a de Polignac number, because 20001313233001 - 2³⁹ = 19451557419113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20001313233001.

It is not an unprimeable number, because it can be changed into a prime (20001313233007) 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, 15848900505 + ... + 15848901766.

It is an arithmetic number, because the mean of its divisors is an integer number (5008252758976).

Almost surely, 2^{20001313233001} is an apocalyptic number.

It is an amenable number.

20001313233001 is a deficient number, since it is larger than the sum of its proper divisors (31697802903).

20001313233001 is an equidigital number, since it uses as much as digits as its factorization.

20001313233001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31697802902.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20001313233001 its reverse (10033231310002), we get a palindrome (30034544543003).

The spelling of 20001313233001 in words is "twenty trillion, one billion, three hundred thirteen million, two hundred thirty-three thousand, one".