13545243352331 has 2 divisors, whose sum is σ = 13545243352332. Its totient is φ = 13545243352330.

The previous prime is 13545243352313. The next prime is 13545243352409. The reversal of 13545243352331 is 13325334254531.

Together with previous prime (13545243352313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13545243352331 - 2¹⁴ = 13545243335947 is a prime.

It is a super-2 number, since 2×13545243352331² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13545243352301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6772621676165 + 6772621676166.

It is an arithmetic number, because the mean of its divisors is an integer number (6772621676166).

Almost surely, 2^{13545243352331} is an apocalyptic number.

13545243352331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13545243352331 is an equidigital number, since it uses as much as digits as its factorization.

13545243352331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944000, while the sum is 44.

The spelling of 13545243352331 in words is "thirteen trillion, five hundred forty-five billion, two hundred forty-three million, three hundred fifty-two thousand, three hundred thirty-one".