21030003203001 has 16 divisors (see below), whose sum is σ = 30208267264896. Its totient is φ = 12936680608896.

The previous prime is 21030003202937. The next prime is 21030003203029. The reversal of 21030003203001 is 10030230003012.

It is not a de Polignac number, because 21030003203001 - 2⁶ = 21030003202937 is a prime.

It is a super-2 number, since 2×21030003203001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21030003283001) 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, 101141140 + ... + 101348853.

It is an arithmetic number, because the mean of its divisors is an integer number (1888016704056).

Almost surely, 2^{21030003203001} is an apocalyptic number.

It is an amenable number.

21030003203001 is a deficient number, since it is larger than the sum of its proper divisors (9178264061895).

21030003203001 is a wasteful number, since it uses less digits than its factorization.

21030003203001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202492672.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21030003203001 its reverse (10030230003012), we get a palindrome (31060233206013).

The spelling of 21030003203001 in words is "twenty-one trillion, thirty billion, three million, two hundred three thousand, one".