13101002020 has 24 divisors (see below), whose sum is σ = 27545326200. Its totient is φ = 5234072832.

The previous prime is 13101001973. The next prime is 13101002021. The reversal of 13101002020 is 2020010131.

It can be written as a sum of positive squares in 4 ways, for example, as 4946176 + 13096055844 = 2224^2 + 114438^2 .

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 = 13101001988 and 13101002006.

It is not an unprimeable number, because it can be changed into a prime (13101002021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378505 + ... + 411664.

It is an arithmetic number, because the mean of its divisors is an integer number (1147721925).

Almost surely, 2^13101002020 is an apocalyptic number.

13101002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13101002020 is an abundant number, since it is smaller than the sum of its proper divisors (14444324180).

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

13101002020 is a wasteful number, since it uses less digits than its factorization.

13101002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791007 (or 791005 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 13101002020 its reverse (2020010131), we get a palindrome (15121012151).

The spelling of 13101002020 in words is "thirteen billion, one hundred one million, two thousand, twenty".