1155045345311 has 8 divisors (see below), whose sum is σ = 1356976349904. Its totient is φ = 969268821120.

The previous prime is 1155045345281. The next prime is 1155045345323. The reversal of 1155045345311 is 1135435405511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155045345311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155045345011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4038619946 + ... + 4038620231.

It is an arithmetic number, because the mean of its divisors is an integer number (169622043738).

Almost surely, 2^{1155045345311} is an apocalyptic number.

1155045345311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1155045345311 is a deficient number, since it is larger than the sum of its proper divisors (201931004593).

1155045345311 is a wasteful number, since it uses less digits than its factorization.

1155045345311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8077240201.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 1155045345311 in words is "one trillion, one hundred fifty-five billion, forty-five million, three hundred forty-five thousand, three hundred eleven".