2121033413 has 2 divisors, whose sum is σ = 2121033414. Its totient is φ = 2121033412.

The previous prime is 2121033367. The next prime is 2121033449. The reversal of 2121033413 is 3143301212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1224510049 + 896523364 = 34993^2 + 29942^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121033413 - 2¹⁸ = 2120771269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121032413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060516706 + 1060516707.

It is an arithmetic number, because the mean of its divisors is an integer number (1060516707).

Almost surely, 2^2121033413 is an apocalyptic number.

It is an amenable number.

2121033413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121033413 is an equidigital number, since it uses as much as digits as its factorization.

2121033413 is an evil number, because the sum of its binary digits is even.

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

The square root of 2121033413 is about 46054.6785136972. The cubic root of 2121033413 is about 1284.8403588766.

Adding to 2121033413 its reverse (3143301212), we get a palindrome (5264334625).

The spelling of 2121033413 in words is "two billion, one hundred twenty-one million, thirty-three thousand, four hundred thirteen".