10002320020 has 144 divisors (see below), whose sum is σ = 26748755712. Its totient is φ = 3106709760.

The previous prime is 10002320011. The next prime is 10002320051. The reversal of 10002320020 is 2002320001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10002319979 and 10002320006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3415797 + ... + 3418723.

It is an arithmetic number, because the mean of its divisors is an integer number (185755248).

Almost surely, 2^10002320020 is an apocalyptic number.

10002320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10002320020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13374377856).

10002320020 is an abundant number, since it is smaller than the sum of its proper divisors (16746435692).

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

10002320020 is a wasteful number, since it uses less digits than its factorization.

10002320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 10002320020 its reverse (2002320001), we get a palindrome (12004640021).

The spelling of 10002320020 in words is "ten billion, two million, three hundred twenty thousand, twenty".