2103071338809 has 63 divisors (see below), whose sum is σ = 3668445049503. Its totient is φ = 1201598429472.

The previous prime is 2103071338769. The next prime is 2103071338867. The reversal of 2103071338809 is 9088331703012.

It is a happy number.

The square root of 2103071338809 is 1450197.

It is a perfect power (a square), and thus also a powerful number.

2103071338809 is a `hidden beast` number, since 2 + 1 + 0 + 307 + 1 + 338 + 8 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1331358284025 + 771713054784 = 1153845^2 + 878472^2 .

It is a tau number, because it is divible by the number of its divisors (63).

It is not a de Polignac number, because 2103071338809 - 2⁷ = 2103071338681 is a prime.

It is a super-2 number, since 2×2103071338809² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2103071333809) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 274083397 + ... + 274091069.

Almost surely, 2^{2103071338809} is an apocalyptic number.

2103071338809 is the 1450197-th square number.

2103071338809 is the 725099-th centered octagonal number.

It is an amenable number.

2103071338809 is a deficient number, since it is larger than the sum of its proper divisors (1565373710694).

2103071338809 is an frugal number, since it uses more digits than its factorization.

2103071338809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15378 (or 7683 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 2103071338809 in words is "two trillion, one hundred three billion, seventy-one million, three hundred thirty-eight thousand, eight hundred nine".