100220231031 has 8 divisors (see below), whose sum is σ = 133629089280. Its totient is φ = 66812430072.

The previous prime is 100220231017. The next prime is 100220231047. The reversal of 100220231031 is 130132022001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100220231031 - 2⁹ = 100220230519 is a prime.

It is a super-2 number, since 2×100220231031² (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 100220231031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220232031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7495 + ... + 447768.

It is an arithmetic number, because the mean of its divisors is an integer number (16703636160).

Almost surely, 2^100220231031 is an apocalyptic number.

100220231031 is a deficient number, since it is larger than the sum of its proper divisors (33408858249).

100220231031 is an equidigital number, since it uses as much as digits as its factorization.

100220231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528645.

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

Adding to 100220231031 its reverse (130132022001), we get a palindrome (230352253032).

The spelling of 100220231031 in words is "one hundred billion, two hundred twenty million, two hundred thirty-one thousand, thirty-one".