1101242203555 has 8 divisors (see below), whose sum is σ = 1423143770832. Its totient is φ = 813225011808.

The previous prime is 1101242203553. The next prime is 1101242203613. The reversal of 1101242203555 is 5553022421011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101242203555 - 2¹ = 1101242203553 is a prime.

It is a super-3 number, since 3×1101242203555³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101242203553) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8471093809 + ... + 8471093938.

It is an arithmetic number, because the mean of its divisors is an integer number (177892971354).

Almost surely, 2^{1101242203555} is an apocalyptic number.

1101242203555 is a deficient number, since it is larger than the sum of its proper divisors (321901567277).

1101242203555 is a wasteful number, since it uses less digits than its factorization.

1101242203555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16942187765.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1101242203555 its reverse (5553022421011), we get a palindrome (6654264624566).

The spelling of 1101242203555 in words is "one trillion, one hundred one billion, two hundred forty-two million, two hundred three thousand, five hundred fifty-five".