20420333001 has 12 divisors (see below), whose sum is σ = 29995970160. Its totient is φ = 13382816760.

The previous prime is 20420332993. The next prime is 20420333027. The reversal of 20420333001 is 10033302402.

It is not a de Polignac number, because 20420333001 - 2³ = 20420332993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20420733001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19227655 + ... + 19228716.

It is an arithmetic number, because the mean of its divisors is an integer number (2499664180).

Almost surely, 2^20420333001 is an apocalyptic number.

It is an amenable number.

20420333001 is a deficient number, since it is larger than the sum of its proper divisors (9575637159).

20420333001 is a wasteful number, since it uses less digits than its factorization.

20420333001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38456436 (or 38456433 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20420333001 its reverse (10033302402), we get a palindrome (30453635403).

The spelling of 20420333001 in words is "twenty billion, four hundred twenty million, three hundred thirty-three thousand, one".