20001011001213 has 32 divisors (see below), whose sum is σ = 29214933986304. Its totient is φ = 12070766880000.

The previous prime is 20001011001173. The next prime is 20001011001217. The reversal of 20001011001213 is 31210011010002.

It is not a de Polignac number, because 20001011001213 - 2¹⁶ = 20001010935677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001011001217) 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, 142375978 + ... + 142516388.

It is an arithmetic number, because the mean of its divisors is an integer number (912966687072).

Almost surely, 2^{20001011001213} is an apocalyptic number.

It is an amenable number.

20001011001213 is a deficient number, since it is larger than the sum of its proper divisors (9213922985091).

20001011001213 is a wasteful number, since it uses less digits than its factorization.

20001011001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158577.

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

Adding to 20001011001213 its reverse (31210011010002), we get a palindrome (51211022011215).

The spelling of 20001011001213 in words is "twenty trillion, one billion, eleven million, one thousand, two hundred thirteen".