11203113202021 has 16 divisors (see below), whose sum is σ = 12071447474688. Its totient is φ = 10335717100800.

The previous prime is 11203113201979. The next prime is 11203113202033. The reversal of 11203113202021 is 12020231130211.

It is not a de Polignac number, because 11203113202021 - 2¹¹ = 11203113199973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11203113202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203113202091) 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, 197602740 + ... + 197659426.

It is an arithmetic number, because the mean of its divisors is an integer number (754465467168).

Almost surely, 2^{11203113202021} is an apocalyptic number.

It is an amenable number.

11203113202021 is a deficient number, since it is larger than the sum of its proper divisors (868334272667).

11203113202021 is a wasteful number, since it uses less digits than its factorization.

11203113202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64692.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11203113202021 its reverse (12020231130211), we get a palindrome (23223344332232).

The spelling of 11203113202021 in words is "eleven trillion, two hundred three billion, one hundred thirteen million, two hundred two thousand, twenty-one".