2103311505 has 16 divisors (see below), whose sum is σ = 3367151424. Its totient is φ = 1121148480.

The previous prime is 2103311479. The next prime is 2103311527. The reversal of 2103311505 is 5051133012.

It is not a de Polignac number, because 2103311505 - 2¹⁹ = 2102787217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9759 + ... + 65588.

It is an arithmetic number, because the mean of its divisors is an integer number (210446964).

Almost surely, 2^2103311505 is an apocalyptic number.

It is an amenable number.

2103311505 is a deficient number, since it is larger than the sum of its proper divisors (1263839919).

2103311505 is a wasteful number, since it uses less digits than its factorization.

2103311505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77216.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 2103311505 is about 45861.8741985105. The cubic root of 2103311505 is about 1281.2519296263.

Adding to 2103311505 its reverse (5051133012), we get a palindrome (7154444517).

The spelling of 2103311505 in words is "two billion, one hundred three million, three hundred eleven thousand, five hundred five".