1155342435511 has 12 divisors (see below), whose sum is σ = 1270009789272. Its totient is φ = 1050238574000.

The previous prime is 1155342435463. The next prime is 1155342435523.

1155342435511 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1155342435511 - 2²³ = 1155334046903 is a prime.

It is a super-2 number, since 2×1155342435511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155342435011) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1464081 + ... + 2110501.

It is an arithmetic number, because the mean of its divisors is an integer number (105834149106).

Almost surely, 2^{1155342435511} is an apocalyptic number.

1155342435511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1155342435511 is a deficient number, since it is larger than the sum of its proper divisors (114667353761).

1155342435511 is a wasteful number, since it uses less digits than its factorization.

1155342435511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661214 (or 661203 counting only the distinct ones).

The product of its digits is 180000, while the sum is 40.

The spelling of 1155342435511 in words is "one trillion, one hundred fifty-five billion, three hundred forty-two million, four hundred thirty-five thousand, five hundred eleven".