13531503001 has 2 divisors, whose sum is σ = 13531503002. Its totient is φ = 13531503000.

The previous prime is 13531502987. The next prime is 13531503043. The reversal of 13531503001 is 10030513531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13400377600 + 131125401 = 115760^2 + 11451^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531503001 - 2²⁹ = 12994632089 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531503061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765751500 + 6765751501.

It is an arithmetic number, because the mean of its divisors is an integer number (6765751501).

Almost surely, 2^13531503001 is an apocalyptic number.

It is an amenable number.

13531503001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531503001 is an equidigital number, since it uses as much as digits as its factorization.

13531503001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 22.

The spelling of 13531503001 in words is "thirteen billion, five hundred thirty-one million, five hundred three thousand, one".