20001002001213 has 8 divisors (see below), whose sum is σ = 26669390763808. Its totient is φ = 13333307286384.

The previous prime is 20001002001181. The next prime is 20001002001257. The reversal of 20001002001213 is 31210020010002.

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

It is not a de Polignac number, because 20001002001213 - 2⁵ = 20001002001181 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001002001293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173444695 + ... + 173559972.

It is an arithmetic number, because the mean of its divisors is an integer number (3333673845476).

Almost surely, 2^{20001002001213} is an apocalyptic number.

It is an amenable number.

20001002001213 is a deficient number, since it is larger than the sum of its proper divisors (6668388762595).

20001002001213 is a wasteful number, since it uses less digits than its factorization.

20001002001213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347023883.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20001002001213 its reverse (31210020010002), we get a palindrome (51211022011215).

The spelling of 20001002001213 in words is "twenty trillion, one billion, two million, one thousand, two hundred thirteen".