2103311555 has 8 divisors (see below), whose sum is σ = 2524894944. Its totient is φ = 1682035200.

The previous prime is 2103311531. The next prime is 2103311569. The reversal of 2103311555 is 5551133012.

It is a happy number.

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

It is not a de Polignac number, because 2103311555 - 2⁸ = 2103311299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61406 + ... + 89315.

It is an arithmetic number, because the mean of its divisors is an integer number (315611868).

Almost surely, 2^2103311555 is an apocalyptic number.

2103311555 is a deficient number, since it is larger than the sum of its proper divisors (421583389).

2103311555 is a wasteful number, since it uses less digits than its factorization.

2103311555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153517.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 2103311555 is about 45861.8747436256. The cubic root of 2103311555 is about 1281.2519397789.

Adding to 2103311555 its reverse (5551133012), we get a palindrome (7654444567).

The spelling of 2103311555 in words is "two billion, one hundred three million, three hundred eleven thousand, five hundred fifty-five".