1103143243356 has 72 divisors (see below), whose sum is σ = 3476572654464. Its totient is φ = 286530711840.

The previous prime is 1103143243351. The next prime is 1103143243381. The reversal of 1103143243356 is 6533423413011.

1103143243356 is a `hidden beast` number, since 1 + 1 + 0 + 314 + 3 + 2 + 4 + 335 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1103143243356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103143243351) 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, 198976890 + ... + 198982433.

It is an arithmetic number, because the mean of its divisors is an integer number (48285731312).

Almost surely, 2^{1103143243356} is an apocalyptic number.

It is an amenable number.

1103143243356 is an abundant number, since it is smaller than the sum of its proper divisors (2373429411108).

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

1103143243356 is a wasteful number, since it uses less digits than its factorization.

1103143243356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397959351 (or 397959346 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 1103143243356 its reverse (6533423413011), we get a palindrome (7636566656367).

The spelling of 1103143243356 in words is "one trillion, one hundred three billion, one hundred forty-three million, two hundred forty-three thousand, three hundred fifty-six".