1121551271488 has 56 divisors (see below), whose sum is σ = 2268189024192. Its totient is φ = 550140854784.

The previous prime is 1121551271479. The next prime is 1121551271497. The reversal of 1121551271488 is 8841721551211.

It is an interprime number because it is at equal distance from previous prime (1121551271479) and next prime (1121551271497).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89695 + ... + 1500382.

It is an arithmetic number, because the mean of its divisors is an integer number (40503375432).

Almost surely, 2^{1121551271488} is an apocalyptic number.

It is an amenable number.

1121551271488 is an abundant number, since it is smaller than the sum of its proper divisors (1146637752704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121551271488 is a wasteful number, since it uses less digits than its factorization.

1121551271488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590299 (or 1590289 counting only the distinct ones).

The product of its digits is 179200, while the sum is 46.

The spelling of 1121551271488 in words is "one trillion, one hundred twenty-one billion, five hundred fifty-one million, two hundred seventy-one thousand, four hundred eighty-eight".