10421312020 has 24 divisors (see below), whose sum is σ = 25011149184. Its totient is φ = 3573021216.

The previous prime is 10421312009. The next prime is 10421312047. The reversal of 10421312020 is 2021312401.

It is a junction number, because it is equal to n+sod(n) for n = 10421311985 and 10421312003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37218832 + ... + 37219111.

It is an arithmetic number, because the mean of its divisors is an integer number (1042131216).

Almost surely, 2^10421312020 is an apocalyptic number.

10421312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10421312020 is an abundant number, since it is smaller than the sum of its proper divisors (14589837164).

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

10421312020 is a wasteful number, since it uses less digits than its factorization.

10421312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74437959 (or 74437957 counting only the distinct ones).

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

Adding to 10421312020 its reverse (2021312401), we get a palindrome (12442624421).

The spelling of 10421312020 in words is "ten billion, four hundred twenty-one million, three hundred twelve thousand, twenty".