13531033801 has 2 divisors, whose sum is σ = 13531033802. Its totient is φ = 13531033800.

The previous prime is 13531033783. The next prime is 13531033823. The reversal of 13531033801 is 10833013531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8335507401 + 5195526400 = 91299^2 + 72080^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531033801 - 2¹³ = 13531025609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13531033801.

It is not a weakly prime, because it can be changed into another prime (13531033871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765516900 + 6765516901.

It is an arithmetic number, because the mean of its divisors is an integer number (6765516901).

Almost surely, 2^13531033801 is an apocalyptic number.

It is an amenable number.

13531033801 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531033801 is an equidigital number, since it uses as much as digits as its factorization.

13531033801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 13531033801 in words is "thirteen billion, five hundred thirty-one million, thirty-three thousand, eight hundred one".