1121235315444 has 36 divisors (see below), whose sum is σ = 2841519697380. Its totient is φ = 372784316160.

The previous prime is 1121235315413. The next prime is 1121235315461. The reversal of 1121235315444 is 4445135321211.

1121235315444 is a `hidden beast` number, since 1 + 1 + 212 + 353 + 1 + 54 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 803511446544 + 317723868900 = 896388^2 + 563670^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1121235315399 and 1121235315408.

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 11 ways as a sum of consecutive naturals, for example, 40018677 + ... + 40046684.

It is an arithmetic number, because the mean of its divisors is an integer number (78931102705).

Almost surely, 2^{1121235315444} is an apocalyptic number.

It is an amenable number.

1121235315444 is an abundant number, since it is smaller than the sum of its proper divisors (1720284381936).

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

1121235315444 is a wasteful number, since it uses less digits than its factorization.

1121235315444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80065760 (or 80065755 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 1121235315444 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-five million, three hundred fifteen thousand, four hundred forty-four".