1155124152011 has 4 divisors (see below), whose sum is σ = 1169745976800. Its totient is φ = 1140502327224.

The previous prime is 1155124151941. The next prime is 1155124152041. The reversal of 1155124152011 is 1102514215511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1155124152011 - 2²² = 1155119957707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155124152041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7310912276 + ... + 7310912433.

It is an arithmetic number, because the mean of its divisors is an integer number (292436494200).

Almost surely, 2^{1155124152011} is an apocalyptic number.

1155124152011 is a deficient number, since it is larger than the sum of its proper divisors (14621824789).

1155124152011 is an equidigital number, since it uses as much as digits as its factorization.

1155124152011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14621824788.

The product of its (nonzero) digits is 2000, while the sum is 29.

Adding to 1155124152011 its reverse (1102514215511), we get a palindrome (2257638367522).

The spelling of 1155124152011 in words is "one trillion, one hundred fifty-five billion, one hundred twenty-four million, one hundred fifty-two thousand, eleven".