20002103001 has 6 divisors (see below), whose sum is σ = 28891926570. Its totient is φ = 13334735328.

The previous prime is 20002102969. The next prime is 20002103027. The reversal of 20002103001 is 10030120002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11815472601 + 8186630400 = 108699^2 + 90480^2 .

It is not a de Polignac number, because 20002103001 - 2⁵ = 20002102969 is a prime.

It is a super-2 number, since 2×20002103001² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2222455889 = 20002103001 / (2 + 0 + 0 + 0 + 2 + 1 + 0 + 3 + 0 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20002103081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111227936 + ... + 1111227953.

It is an arithmetic number, because the mean of its divisors is an integer number (4815321095).

Almost surely, 2^20002103001 is an apocalyptic number.

It is an amenable number.

20002103001 is a deficient number, since it is larger than the sum of its proper divisors (8889823569).

20002103001 is a wasteful number, since it uses less digits than its factorization.

20002103001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222455895 (or 2222455892 counting only the distinct ones).

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

Adding to 20002103001 its reverse (10030120002), we get a palindrome (30032223003).

The spelling of 20002103001 in words is "twenty billion, two million, one hundred three thousand, one".