1202103311021 has 4 divisors (see below), whose sum is σ = 1220045151552. Its totient is φ = 1184161470492.

The previous prime is 1202103311009. The next prime is 1202103311063. The reversal of 1202103311021 is 1201133012021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202103311021 - 2⁶ = 1202103310957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202103317021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8970920165 + ... + 8970920298.

It is an arithmetic number, because the mean of its divisors is an integer number (305011287888).

Almost surely, 2^{1202103311021} is an apocalyptic number.

It is an amenable number.

1202103311021 is a deficient number, since it is larger than the sum of its proper divisors (17941840531).

1202103311021 is an equidigital number, since it uses as much as digits as its factorization.

1202103311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17941840530.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1202103311021 its reverse (1201133012021), we get a palindrome (2403236323042).

Subtracting from 1202103311021 its reverse (1201133012021), we obtain a cube (970299000 = 990³).

The spelling of 1202103311021 in words is "one trillion, two hundred two billion, one hundred three million, three hundred eleven thousand, twenty-one".