100143122020 has 12 divisors (see below), whose sum is σ = 210300556284. Its totient is φ = 40057248800.

The previous prime is 100143121999. The next prime is 100143122059. The reversal of 100143122020 is 20221341001.

It can be written as a sum of positive squares in 2 ways, for example, as 43640881216 + 56502240804 = 208904^2 + 237702^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100143121985 and 100143122003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503578031 + ... + 2503578070.

It is an arithmetic number, because the mean of its divisors is an integer number (17525046357).

Almost surely, 2^100143122020 is an apocalyptic number.

100143122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100143122020 is an abundant number, since it is smaller than the sum of its proper divisors (110157434264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100143122020 is a wasteful number, since it uses less digits than its factorization.

100143122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007156110 (or 5007156108 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100143122020 its reverse (20221341001), we get a palindrome (120364463021).

The spelling of 100143122020 in words is "one hundred billion, one hundred forty-three million, one hundred twenty-two thousand, twenty".