20131301020 has 12 divisors (see below), whose sum is σ = 42275732184. Its totient is φ = 8052520400.

The previous prime is 20131300999. The next prime is 20131301027. The reversal of 20131301020 is 2010313102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131301027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503282506 + ... + 503282545.

It is an arithmetic number, because the mean of its divisors is an integer number (3522977682).

Almost surely, 2^20131301020 is an apocalyptic number.

20131301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131301020 is an abundant number, since it is smaller than the sum of its proper divisors (22144431164).

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

20131301020 is a wasteful number, since it uses less digits than its factorization.

20131301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006565060 (or 1006565058 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20131301020 its reverse (2010313102), we get a palindrome (22141614122).

The spelling of 20131301020 in words is "twenty billion, one hundred thirty-one million, three hundred one thousand, twenty".