100220131423 has 4 divisors (see below), whose sum is σ = 101139582280. Its totient is φ = 99300680568.

The previous prime is 100220131373. The next prime is 100220131439. The reversal of 100220131423 is 324131022001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324131022001 = 245477 ⋅1320413.

It is a cyclic number.

It is not a de Polignac number, because 100220131423 - 2⁹ = 100220130911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100220131423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220131463) 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, 459725265 + ... + 459725482.

It is an arithmetic number, because the mean of its divisors is an integer number (25284895570).

Almost surely, 2^100220131423 is an apocalyptic number.

100220131423 is a deficient number, since it is larger than the sum of its proper divisors (919450857).

100220131423 is an equidigital number, since it uses as much as digits as its factorization.

100220131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919450856.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 100220131423 its reverse (324131022001), we get a palindrome (424351153424).

The spelling of 100220131423 in words is "one hundred billion, two hundred twenty million, one hundred thirty-one thousand, four hundred twenty-three".