1030520020553 has 2 divisors, whose sum is σ = 1030520020554. Its totient is φ = 1030520020552.

The previous prime is 1030520020513. The next prime is 1030520020571. The reversal of 1030520020553 is 3550200250301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1024137928009 + 6382092544 = 1011997^2 + 79888^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030520020553 - 2¹⁴ = 1030520004169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1030520020513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515260010276 + 515260010277.

It is an arithmetic number, because the mean of its divisors is an integer number (515260010277).

Almost surely, 2^{1030520020553} is an apocalyptic number.

It is an amenable number.

1030520020553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030520020553 is an equidigital number, since it uses as much as digits as its factorization.

1030520020553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

Adding to 1030520020553 its reverse (3550200250301), we get a palindrome (4580720270854).

The spelling of 1030520020553 in words is "one trillion, thirty billion, five hundred twenty million, twenty thousand, five hundred fifty-three".