20113113503211 has 16 divisors (see below), whose sum is σ = 26857112418720. Its totient is φ = 13388936463360.

The previous prime is 20113113503207. The next prime is 20113113503227. The reversal of 20113113503211 is 11230531131102.

It is not a de Polignac number, because 20113113503211 - 2² = 20113113503207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20113113503201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9081591 + ... + 11077071.

It is an arithmetic number, because the mean of its divisors is an integer number (1678569526170).

Almost surely, 2^{20113113503211} is an apocalyptic number.

20113113503211 is a deficient number, since it is larger than the sum of its proper divisors (6743998915509).

20113113503211 is a wasteful number, since it uses less digits than its factorization.

20113113503211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000446.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 20113113503211 its reverse (11230531131102), we get a palindrome (31343644634313).

The spelling of 20113113503211 in words is "twenty trillion, one hundred thirteen billion, one hundred thirteen million, five hundred three thousand, two hundred eleven".