1121644143369 has 24 divisors (see below), whose sum is σ = 1715932183680. Its totient is φ = 703581257088.

The previous prime is 1121644143359. The next prime is 1121644143409. The reversal of 1121644143369 is 9633414461211.

1121644143369 is a `hidden beast` number, since 1 + 12 + 164 + 41 + 433 + 6 + 9 = 666.

It is not a de Polignac number, because 1121644143369 - 2⁷ = 1121644143241 is a prime.

It is a super-3 number, since 3×1121644143369³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1121644143359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464349 + ... + 1568090.

It is an arithmetic number, because the mean of its divisors is an integer number (71497174320).

Almost surely, 2^{1121644143369} is an apocalyptic number.

It is an amenable number.

1121644143369 is a deficient number, since it is larger than the sum of its proper divisors (594288040311).

1121644143369 is a wasteful number, since it uses less digits than its factorization.

1121644143369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036069 (or 2036066 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 1121644143369 in words is "one trillion, one hundred twenty-one billion, six hundred forty-four million, one hundred forty-three thousand, three hundred sixty-nine".