20111202411 has 4 divisors (see below), whose sum is σ = 26814936552. Its totient is φ = 13407468272.

The previous prime is 20111202401. The next prime is 20111202413. The reversal of 20111202411 is 11420211102.

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 20111202411 - 2⁶ = 20111202347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20111202413) 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, 3351867066 + ... + 3351867071.

It is an arithmetic number, because the mean of its divisors is an integer number (6703734138).

Almost surely, 2^20111202411 is an apocalyptic number.

20111202411 is a deficient number, since it is larger than the sum of its proper divisors (6703734141).

20111202411 is an equidigital number, since it uses as much as digits as its factorization.

20111202411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703734140.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20111202411 its reverse (11420211102), we get a palindrome (31531413513).

The spelling of 20111202411 in words is "twenty billion, one hundred eleven million, two hundred two thousand, four hundred eleven".