1052340322921 has 2 divisors, whose sum is σ = 1052340322922. Its totient is φ = 1052340322920.

The previous prime is 1052340322907. The next prime is 1052340322937. The reversal of 1052340322921 is 1292230432501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007090524521 + 45249798400 = 1003539^2 + 212720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052340322921 - 2¹¹ = 1052340320873 is a prime.

It is a super-2 number, since 2×1052340322921² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1052340322951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526170161460 + 526170161461.

It is an arithmetic number, because the mean of its divisors is an integer number (526170161461).

Almost surely, 2^{1052340322921} is an apocalyptic number.

It is an amenable number.

1052340322921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052340322921 is an equidigital number, since it uses as much as digits as its factorization.

1052340322921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 1052340322921 in words is "one trillion, fifty-two billion, three hundred forty million, three hundred twenty-two thousand, nine hundred twenty-one".