2021231201053 has 2 divisors, whose sum is σ = 2021231201054. Its totient is φ = 2021231201052.

The previous prime is 2021231201047. The next prime is 2021231201117. The reversal of 2021231201053 is 3501021321202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122578392324 + 898652808729 = 1059518^2 + 947973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021231201053 is a prime.

It is a super-2 number, since 2×2021231201053² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021231201453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010615600526 + 1010615600527.

It is an arithmetic number, because the mean of its divisors is an integer number (1010615600527).

Almost surely, 2^{2021231201053} is an apocalyptic number.

It is an amenable number.

2021231201053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021231201053 is an equidigital number, since it uses as much as digits as its factorization.

2021231201053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 2021231201053 its reverse (3501021321202), we get a palindrome (5522252522255).

The spelling of 2021231201053 in words is "two trillion, twenty-one billion, two hundred thirty-one million, two hundred one thousand, fifty-three".