100243422031 has 4 divisors (see below), whose sum is σ = 100244055600. Its totient is φ = 100242788464.

The previous prime is 100243422023. The next prime is 100243422061. The reversal of 100243422031 is 130224342001.

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.

It is a cyclic number.

It is not a de Polignac number, because 100243422031 - 2³ = 100243422023 is a prime.

It is a super-2 number, since 2×100243422031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100243421993 and 100243422011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100243422061) 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, 142755 + ... + 469963.

It is an arithmetic number, because the mean of its divisors is an integer number (25061013900).

Almost surely, 2^100243422031 is an apocalyptic number.

100243422031 is a deficient number, since it is larger than the sum of its proper divisors (633569).

100243422031 is an equidigital number, since it uses as much as digits as its factorization.

100243422031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633568.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 100243422031 its reverse (130224342001), we get a palindrome (230467764032).

The spelling of 100243422031 in words is "one hundred billion, two hundred forty-three million, four hundred twenty-two thousand, thirty-one".