2121201305053 has 2 divisors, whose sum is σ = 2121201305054. Its totient is φ = 2121201305052.

The previous prime is 2121201305021. The next prime is 2121201305099. The reversal of 2121201305053 is 3505031021212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1515328994169 + 605872310884 = 1230987^2 + 778378^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121201305053 - 2⁵ = 2121201305021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121201305653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060600652526 + 1060600652527.

It is an arithmetic number, because the mean of its divisors is an integer number (1060600652527).

Almost surely, 2^{2121201305053} is an apocalyptic number.

It is an amenable number.

2121201305053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121201305053 is an equidigital number, since it uses as much as digits as its factorization.

2121201305053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 2121201305053 its reverse (3505031021212), we get a palindrome (5626232326265).

The spelling of 2121201305053 in words is "two trillion, one hundred twenty-one billion, two hundred one million, three hundred five thousand, fifty-three".