2121003301 has 4 divisors (see below), whose sum is σ = 2121190732. Its totient is φ = 2120815872.

The previous prime is 2121003299. The next prime is 2121003347. The reversal of 2121003301 is 1033001212.

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 1045228900 + 1075774401 = 32330^2 + 32799^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121003301 - 2¹ = 2121003299 is a prime.

It is a super-3 number, since 3×2121003301³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121003371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75570 + ... + 99763.

It is an arithmetic number, because the mean of its divisors is an integer number (530297683).

Almost surely, 2^2121003301 is an apocalyptic number.

It is an amenable number.

2121003301 is a deficient number, since it is larger than the sum of its proper divisors (187431).

2121003301 is a wasteful number, since it uses less digits than its factorization.

2121003301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187430.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2121003301 is about 46054.3515967818. The cubic root of 2121003301 is about 1284.8342786179.

Adding to 2121003301 its reverse (1033001212), we get a palindrome (3154004513).

The spelling of 2121003301 in words is "two billion, one hundred twenty-one million, three thousand, three hundred one".