100231500533 has 4 divisors (see below), whose sum is σ = 101874639948. Its totient is φ = 98588361120.

The previous prime is 100231500529. The next prime is 100231500539. The reversal of 100231500533 is 335005132001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335005132001 = 43889 ⋅7633009.

It can be written as a sum of positive squares in 2 ways, for example, as 1573946929 + 98657553604 = 39673^2 + 314098^2 .

It is a cyclic number.

It is not a de Polignac number, because 100231500533 - 2² = 100231500529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100231500499 and 100231500508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231500539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821569616 + ... + 821569737.

It is an arithmetic number, because the mean of its divisors is an integer number (25468659987).

Almost surely, 2^100231500533 is an apocalyptic number.

It is an amenable number.

100231500533 is a deficient number, since it is larger than the sum of its proper divisors (1643139415).

100231500533 is an equidigital number, since it uses as much as digits as its factorization.

100231500533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643139414.

The product of its (nonzero) digits is 1350, while the sum is 23.

Adding to 100231500533 its reverse (335005132001), we get a palindrome (435236632534).

The spelling of 100231500533 in words is "one hundred billion, two hundred thirty-one million, five hundred thousand, five hundred thirty-three".