105122403020 has 24 divisors (see below), whose sum is σ = 221554014864. Its totient is φ = 41897157696.

The previous prime is 105122403019. The next prime is 105122403037. The reversal of 105122403020 is 20304221501.

It is a super-2 number, since 2×105122403020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 105122402983 and 105122403001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9482042 + ... + 9493121.

It is an arithmetic number, because the mean of its divisors is an integer number (9231417286).

Almost surely, 2^105122403020 is an apocalyptic number.

105122403020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105122403020 is an abundant number, since it is smaller than the sum of its proper divisors (116431611844).

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

105122403020 is a wasteful number, since it uses less digits than its factorization.

105122403020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18975449 (or 18975447 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 105122403020 its reverse (20304221501), we get a palindrome (125426624521).

The spelling of 105122403020 in words is "one hundred five billion, one hundred twenty-two million, four hundred three thousand, twenty".