11431312667545 has 8 divisors (see below), whose sum is σ = 13723626196224. Its totient is φ = 9141016137264.

The previous prime is 11431312667447. The next prime is 11431312667569. The reversal of 11431312667545 is 54576621313411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11431312667545 - 2¹³ = 11431312659353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504237129 + ... + 504259798.

It is an arithmetic number, because the mean of its divisors is an integer number (1715453274528).

Almost surely, 2^{11431312667545} is an apocalyptic number.

It is an amenable number.

11431312667545 is a deficient number, since it is larger than the sum of its proper divisors (2292313528679).

11431312667545 is a wasteful number, since it uses less digits than its factorization.

11431312667545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008499199.

The product of its digits is 1814400, while the sum is 49.

The spelling of 11431312667545 in words is "eleven trillion, four hundred thirty-one billion, three hundred twelve million, six hundred sixty-seven thousand, five hundred forty-five".