1023532521413 has 2 divisors, whose sum is σ = 1023532521414. Its totient is φ = 1023532521412.

The previous prime is 1023532521373. The next prime is 1023532521449. The reversal of 1023532521413 is 3141252353201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 604486035169 + 419046486244 = 777487^2 + 647338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023532521413 - 2¹⁴ = 1023532505029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023532521413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023532521113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511766260706 + 511766260707.

It is an arithmetic number, because the mean of its divisors is an integer number (511766260707).

Almost surely, 2^{1023532521413} is an apocalyptic number.

It is an amenable number.

1023532521413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023532521413 is an equidigital number, since it uses as much as digits as its factorization.

1023532521413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1023532521413 its reverse (3141252353201), we get a palindrome (4164784874614).

The spelling of 1023532521413 in words is "one trillion, twenty-three billion, five hundred thirty-two million, five hundred twenty-one thousand, four hundred thirteen".