1021312320053 has 2 divisors, whose sum is σ = 1021312320054. Its totient is φ = 1021312320052.

The previous prime is 1021312320031. The next prime is 1021312320101. The reversal of 1021312320053 is 3500232131201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 951401258404 + 69911061649 = 975398^2 + 264407^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021312320053 - 2¹² = 1021312315957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021312320953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510656160026 + 510656160027.

It is an arithmetic number, because the mean of its divisors is an integer number (510656160027).

Almost surely, 2^{1021312320053} is an apocalyptic number.

It is an amenable number.

1021312320053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021312320053 is an equidigital number, since it uses as much as digits as its factorization.

1021312320053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 1021312320053 its reverse (3500232131201), we get a palindrome (4521544451254).

The spelling of 1021312320053 in words is "one trillion, twenty-one billion, three hundred twelve million, three hundred twenty thousand, fifty-three".