3023121203021 has 4 divisors (see below), whose sum is σ = 3023167282044. Its totient is φ = 3023075124000.

The previous prime is 3023121202979. The next prime is 3023121203023. The reversal of 3023121203021 is 1203021213203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2199256374121 + 823864828900 = 1482989^2 + 907670^2 .

It is a cyclic number.

It is not a de Polignac number, because 3023121203021 - 2³⁰ = 3022047461197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3023121202984 and 3023121203002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3023121203023) 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, 22940960 + ... + 23072361.

It is an arithmetic number, because the mean of its divisors is an integer number (755791820511).

Almost surely, 2^{3023121203021} is an apocalyptic number.

It is an amenable number.

3023121203021 is a deficient number, since it is larger than the sum of its proper divisors (46079023).

3023121203021 is an equidigital number, since it uses as much as digits as its factorization.

3023121203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46079022.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3023121203021 its reverse (1203021213203), we get a palindrome (4226142416224).

The spelling of 3023121203021 in words is "three trillion, twenty-three billion, one hundred twenty-one million, two hundred three thousand, twenty-one".