20103200001 has 16 divisors (see below), whose sum is σ = 29829742720. Its totient is φ = 13380882480.

The previous prime is 20103199999. The next prime is 20103200003. The reversal of 20103200001 is 10000230102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20103199999) and next prime (20103200003).

It is not a de Polignac number, because 20103200001 - 2¹ = 20103199999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20103200003) 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, 572950 + ... + 607023.

It is an arithmetic number, because the mean of its divisors is an integer number (1864358920).

Almost surely, 2^20103200001 is an apocalyptic number.

It is an amenable number.

20103200001 is a deficient number, since it is larger than the sum of its proper divisors (9726542719).

20103200001 is a wasteful number, since it uses less digits than its factorization.

20103200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180613 (or 1180607 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20103200001 its reverse (10000230102), we get a palindrome (30103430103).

The spelling of 20103200001 in words is "twenty billion, one hundred three million, two hundred thousand, one".