13531202273 has 2 divisors, whose sum is σ = 13531202274. Its totient is φ = 13531202272.

The previous prime is 13531202263. The next prime is 13531202297. The reversal of 13531202273 is 37220213531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13524992209 + 6210064 = 116297^2 + 2492^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531202273 - 2²⁰ = 13530153697 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531202263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765601136 + 6765601137.

It is an arithmetic number, because the mean of its divisors is an integer number (6765601137).

Almost surely, 2^13531202273 is an apocalyptic number.

It is an amenable number.

13531202273 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531202273 is an equidigital number, since it uses as much as digits as its factorization.

13531202273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 13531202273 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, two hundred seventy-three".