1053143231321 has 2 divisors, whose sum is σ = 1053143231322. Its totient is φ = 1053143231320.

The previous prime is 1053143231291. The next prime is 1053143231353. The reversal of 1053143231321 is 1231323413501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1051012485721 + 2130745600 = 1025189^2 + 46160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053143231321 - 2¹⁰ = 1053143230297 is a prime.

It is a super-2 number, since 2×1053143231321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1053143233321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526571615660 + 526571615661.

It is an arithmetic number, because the mean of its divisors is an integer number (526571615661).

Almost surely, 2^{1053143231321} is an apocalyptic number.

It is an amenable number.

1053143231321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053143231321 is an equidigital number, since it uses as much as digits as its factorization.

1053143231321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 1053143231321 its reverse (1231323413501), we get a palindrome (2284466644822).

The spelling of 1053143231321 in words is "one trillion, fifty-three billion, one hundred forty-three million, two hundred thirty-one thousand, three hundred twenty-one".