1021201302203 has 16 divisors (see below), whose sum is σ = 1058459724000. Its totient is φ = 984080224512.

The previous prime is 1021201302193. The next prime is 1021201302217. The reversal of 1021201302203 is 3022031021201.

It is a cyclic number.

It is not a de Polignac number, because 1021201302203 - 2⁶ = 1021201302139 is a prime.

It is a super-2 number, since 2×1021201302203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021201302403) 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, 74052233 + ... + 74066021.

It is an arithmetic number, because the mean of its divisors is an integer number (66153732750).

Almost surely, 2^{1021201302203} is an apocalyptic number.

1021201302203 is a deficient number, since it is larger than the sum of its proper divisors (37258421797).

1021201302203 is a wasteful number, since it uses less digits than its factorization.

1021201302203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18574.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1021201302203 its reverse (3022031021201), we get a palindrome (4043232323404).

The spelling of 1021201302203 in words is "one trillion, twenty-one billion, two hundred one million, three hundred two thousand, two hundred three".