20423200011 has 4 divisors (see below), whose sum is σ = 27230933352. Its totient is φ = 13615466672.

The previous prime is 20423199961. The next prime is 20423200043. The reversal of 20423200011 is 11000232402.

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 20423200011 - 2⁶ = 20423199947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20423200051) 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, 3403866666 + ... + 3403866671.

It is an arithmetic number, because the mean of its divisors is an integer number (6807733338).

Almost surely, 2^20423200011 is an apocalyptic number.

20423200011 is a deficient number, since it is larger than the sum of its proper divisors (6807733341).

20423200011 is an equidigital number, since it uses as much as digits as its factorization.

20423200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807733340.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20423200011 its reverse (11000232402), we get a palindrome (31423432413).

The spelling of 20423200011 in words is "twenty billion, four hundred twenty-three million, two hundred thousand, eleven".