2121323332253 has 2 divisors, whose sum is σ = 2121323332254. Its totient is φ = 2121323332252.

The previous prime is 2121323332211. The next prime is 2121323332307. The reversal of 2121323332253 is 3522333231212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1515762332569 + 605560999684 = 1231163^2 + 778178^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121323332253 - 2¹⁰ = 2121323331229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121323334253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060661666126 + 1060661666127.

It is an arithmetic number, because the mean of its divisors is an integer number (1060661666127).

Almost surely, 2^{2121323332253} is an apocalyptic number.

It is an amenable number.

2121323332253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121323332253 is an equidigital number, since it uses as much as digits as its factorization.

2121323332253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 32.

Adding to 2121323332253 its reverse (3522333231212), we get a palindrome (5643656563465).

The spelling of 2121323332253 in words is "two trillion, one hundred twenty-one billion, three hundred twenty-three million, three hundred thirty-two thousand, two hundred fifty-three".