2103311545 has 8 divisors (see below), whose sum is σ = 2525450760. Its totient is φ = 1681664640.

The previous prime is 2103311531. The next prime is 2103311569. The reversal of 2103311545 is 5451133012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 617671609 + 1485639936 = 24853^2 + 38544^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2103311545 is a prime.

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, 113610 + ... + 130819.

It is an arithmetic number, because the mean of its divisors is an integer number (315681345).

Almost surely, 2^2103311545 is an apocalyptic number.

It is an amenable number.

2103311545 is a deficient number, since it is larger than the sum of its proper divisors (422139215).

2103311545 is a wasteful number, since it uses less digits than its factorization.

2103311545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246155.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2103311545 is about 45861.8746346025. The cubic root of 2103311545 is about 1281.2519377484.

Adding to 2103311545 its reverse (5451133012), we get a palindrome (7554444557).

The spelling of 2103311545 in words is "two billion, one hundred three million, three hundred eleven thousand, five hundred forty-five".