2121339363 has 64 divisors (see below), whose sum is σ = 3431393280. Its totient is φ = 1148659200.

The previous prime is 2121339317. The next prime is 2121339391. The reversal of 2121339363 is 3639331212.

It is a Cunningham number, because it is equal to 46058²-1.

It is not a de Polignac number, because 2121339363 - 2⁸ = 2121339107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2121339163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1795633 + ... + 1796813.

It is an arithmetic number, because the mean of its divisors is an integer number (53615520).

Almost surely, 2^2121339363 is an apocalyptic number.

2121339363 is a deficient number, since it is larger than the sum of its proper divisors (1310053917).

2121339363 is a wasteful number, since it uses less digits than its factorization.

2121339363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its digits is 17496, while the sum is 33.

The square root of 2121339363 is about 46057.9999891441. Note that the first 4 decimals coincide. The cubic root of 2121339363 is about 1284.9021334824.

The spelling of 2121339363 in words is "two billion, one hundred twenty-one million, three hundred thirty-nine thousand, three hundred sixty-three".