2103323566555 has 8 divisors (see below), whose sum is σ = 2656829768400. Its totient is φ = 1594097860896.

The previous prime is 2103323566549. The next prime is 2103323566559. The reversal of 2103323566555 is 5556653233012.

It is a happy number.

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 2103323566555 - 2⁷ = 2103323566427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103323566559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11070123940 + ... + 11070124129.

It is an arithmetic number, because the mean of its divisors is an integer number (332103721050).

Almost surely, 2^{2103323566555} is an apocalyptic number.

2103323566555 is a deficient number, since it is larger than the sum of its proper divisors (553506201845).

2103323566555 is a wasteful number, since it uses less digits than its factorization.

2103323566555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22140248093.

The product of its (nonzero) digits is 2430000, while the sum is 46.

Adding to 2103323566555 its reverse (5556653233012), we get a palindrome (7659976799567).

The spelling of 2103323566555 in words is "two trillion, one hundred three billion, three hundred twenty-three million, five hundred sixty-six thousand, five hundred fifty-five".