20424002011 has 16 divisors (see below), whose sum is σ = 24880651200. Its totient is φ = 16365911040.

The previous prime is 20424002003. The next prime is 20424002021. The reversal of 20424002011 is 11020042402.

It is a cyclic number.

It is not a de Polignac number, because 20424002011 - 2³ = 20424002003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424002021) 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, 558210 + ... + 593671.

It is an arithmetic number, because the mean of its divisors is an integer number (1555040700).

Almost surely, 2^20424002011 is an apocalyptic number.

20424002011 is a deficient number, since it is larger than the sum of its proper divisors (4456649189).

20424002011 is a wasteful number, since it uses less digits than its factorization.

20424002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152054.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20424002011 its reverse (11020042402), we get a palindrome (31444044413).

The spelling of 20424002011 in words is "twenty billion, four hundred twenty-four million, two thousand, eleven".