2121030301 has 16 divisors (see below), whose sum is σ = 2318678208. Its totient is φ = 1928534400.

The previous prime is 2121030283. The next prime is 2121030337. The reversal of 2121030301 is 1030301212.

It is not a de Polignac number, because 2121030301 - 2¹³ = 2121022109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121030601) 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 15 ways as a sum of consecutive naturals, for example, 228766 + ... + 237856.

It is an arithmetic number, because the mean of its divisors is an integer number (144917388).

Almost surely, 2^2121030301 is an apocalyptic number.

It is an amenable number.

2121030301 is a deficient number, since it is larger than the sum of its proper divisors (197647907).

2121030301 is a wasteful number, since it uses less digits than its factorization.

2121030301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9372.

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

The square root of 2121030301 is about 46054.6447277579. The cubic root of 2121030301 is about 1284.8397304998.

Adding to 2121030301 its reverse (1030301212), we get a palindrome (3151331513).

The spelling of 2121030301 in words is "two billion, one hundred twenty-one million, thirty thousand, three hundred one".