2103321520 has 40 divisors (see below), whose sum is σ = 4892227056. Its totient is φ = 840983808.

The previous prime is 2103321497. The next prime is 2103321547. The reversal of 2103321520 is 251233012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2103321520² = 8847922832990220800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295119 + ... + 302161.

Almost surely, 2^2103321520 is an apocalyptic number.

2103321520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103321520 is an abundant number, since it is smaller than the sum of its proper divisors (2788905536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2103321520 is a wasteful number, since it uses less digits than its factorization.

2103321520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10789 (or 10783 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2103321520 is about 45861.9833849344. The cubic root of 2103321520 is about 1281.2539632001.

Adding to 2103321520 its reverse (251233012), we get a palindrome (2354554532).

The spelling of 2103321520 in words is "two billion, one hundred three million, three hundred twenty-one thousand, five hundred twenty".