20113001001211 has 4 divisors (see below), whose sum is σ = 20114929946232. Its totient is φ = 20111072056192.

The previous prime is 20113001001209. The next prime is 20113001001259. The reversal of 20113001001211 is 11210010031102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20113001001211 - 2¹ = 20113001001209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113001001191 and 20113001001200.

It is not an unprimeable number, because it can be changed into a prime (20113001001281) 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, 964456870 + ... + 964477723.

It is an arithmetic number, because the mean of its divisors is an integer number (5028732486558).

Almost surely, 2^{20113001001211} is an apocalyptic number.

20113001001211 is a deficient number, since it is larger than the sum of its proper divisors (1928945021).

20113001001211 is a wasteful number, since it uses less digits than its factorization.

20113001001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928945020.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 20113001001211 its reverse (11210010031102), we get a palindrome (31323011032313).

The spelling of 20113001001211 in words is "twenty trillion, one hundred thirteen billion, one million, one thousand, two hundred eleven".