1121305153255 has 32 divisors (see below), whose sum is σ = 1542462326784. Its totient is φ = 766561694976.

The previous prime is 1121305153193. The next prime is 1121305153261. The reversal of 1121305153255 is 5523515031211.

It is a happy number.

It is not a de Polignac number, because 1121305153255 - 2⁷ = 1121305153127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121305153255.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 18816667 + ... + 18876163.

It is an arithmetic number, because the mean of its divisors is an integer number (48201947712).

Almost surely, 2^{1121305153255} is an apocalyptic number.

1121305153255 is a deficient number, since it is larger than the sum of its proper divisors (421157173529).

1121305153255 is a wasteful number, since it uses less digits than its factorization.

1121305153255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61135.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 1121305153255 in words is "one trillion, one hundred twenty-one billion, three hundred five million, one hundred fifty-three thousand, two hundred fifty-five".