10420104020 has 12 divisors (see below), whose sum is σ = 21882218484. Its totient is φ = 4168041600.

The previous prime is 10420104011. The next prime is 10420104031. The reversal of 10420104020 is 2040102401.

It can be written as a sum of positive squares in 2 ways, for example, as 8238466756 + 2181637264 = 90766^2 + 46708^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10420103986 and 10420104004.

It is a congruent number.

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, 260502581 + ... + 260502620.

It is an arithmetic number, because the mean of its divisors is an integer number (1823518207).

Almost surely, 2^10420104020 is an apocalyptic number.

10420104020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10420104020 is an abundant number, since it is smaller than the sum of its proper divisors (11462114464).

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

10420104020 is a wasteful number, since it uses less digits than its factorization.

10420104020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521005210 (or 521005208 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10420104020 its reverse (2040102401), we get a palindrome (12460206421).

The spelling of 10420104020 in words is "ten billion, four hundred twenty million, one hundred four thousand, twenty".