2120121023303 has 4 divisors (see below), whose sum is σ = 2120176636200. Its totient is φ = 2120065410408.

The previous prime is 2120121023287. The next prime is 2120121023309. The reversal of 2120121023303 is 3033201210212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120121023303 - 2⁴ = 2120121023287 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 (2120121023309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27749225 + ... + 27825522.

It is an arithmetic number, because the mean of its divisors is an integer number (530044159050).

Almost surely, 2^{2120121023303} is an apocalyptic number.

2120121023303 is a deficient number, since it is larger than the sum of its proper divisors (55612897).

2120121023303 is an equidigital number, since it uses as much as digits as its factorization.

2120121023303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55612896.

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

Adding to 2120121023303 its reverse (3033201210212), we get a palindrome (5153322233515).

The spelling of 2120121023303 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, twenty-three thousand, three hundred three".