1155121049126 has 8 divisors (see below), whose sum is σ = 1890198080424. Its totient is φ = 525055022320.

The previous prime is 1155121049063. The next prime is 1155121049161. The reversal of 1155121049126 is 6219401215511.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155121049126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26252751095 + ... + 26252751138.

It is an arithmetic number, because the mean of its divisors is an integer number (236274760053).

Almost surely, 2^{1155121049126} is an apocalyptic number.

1155121049126 is a deficient number, since it is larger than the sum of its proper divisors (735077031298).

1155121049126 is a wasteful number, since it uses less digits than its factorization.

1155121049126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52505502246.

The product of its (nonzero) digits is 21600, while the sum is 38.

The spelling of 1155121049126 in words is "one trillion, one hundred fifty-five billion, one hundred twenty-one million, forty-nine thousand, one hundred twenty-six".