100589831281 has 3 divisors (see below), whose sum is σ = 100590148441. Its totient is φ = 100589514122.

The previous prime is 100589831269. The next prime is 100589831297. The reversal of 100589831281 is 182138985001.

The square root of 100589831281 is 317159.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 182138985001 = 5827 ⋅31257763.

It is not a de Polignac number, because 100589831281 - 2¹¹ = 100589829233 is a prime.

It is a super-2 number, since 2×100589831281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100589831231) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 158580 + ... + 475738.

Almost surely, 2^100589831281 is an apocalyptic number.

100589831281 is the 317159-th square number.

100589831281 is the 158580-th centered octagonal number.

It is an amenable number.

100589831281 is a deficient number, since it is larger than the sum of its proper divisors (317160).

100589831281 is an frugal number, since it uses more digits than its factorization.

100589831281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634318 (or 317159 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 46.

The spelling of 100589831281 in words is "one hundred billion, five hundred eighty-nine million, eight hundred thirty-one thousand, two hundred eighty-one".