13521063403 has 2 divisors, whose sum is σ = 13521063404. Its totient is φ = 13521063402.

The previous prime is 13521063349. The next prime is 13521063419. The reversal of 13521063403 is 30436012531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13521063403 - 2¹³ = 13521055211 is a prime.

It is not a weakly prime, because it can be changed into another prime (13521063463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760531701 + 6760531702.

It is an arithmetic number, because the mean of its divisors is an integer number (6760531702).

Almost surely, 2^13521063403 is an apocalyptic number.

13521063403 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521063403 is an equidigital number, since it uses as much as digits as its factorization.

13521063403 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 28.

Adding to 13521063403 its reverse (30436012531), we get a palindrome (43957075934).

The spelling of 13521063403 in words is "thirteen billion, five hundred twenty-one million, sixty-three thousand, four hundred three".