100030221231 has 4 divisors (see below), whose sum is σ = 133373628312. Its totient is φ = 66686814152.

The previous prime is 100030221227. The next prime is 100030221233. The reversal of 100030221231 is 132122030001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100030221231 - 2² = 100030221227 is a prime.

It is a super-2 number, since 2×100030221231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100030221231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100030221233) 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, 16671703536 + ... + 16671703541.

It is an arithmetic number, because the mean of its divisors is an integer number (33343407078).

Almost surely, 2^100030221231 is an apocalyptic number.

100030221231 is a deficient number, since it is larger than the sum of its proper divisors (33343407081).

100030221231 is an equidigital number, since it uses as much as digits as its factorization.

100030221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33343407080.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100030221231 its reverse (132122030001), we get a palindrome (232152251232).

The spelling of 100030221231 in words is "one hundred billion, thirty million, two hundred twenty-one thousand, two hundred thirty-one".