13231101020 has 48 divisors (see below), whose sum is σ = 29465983008. Its totient is φ = 4973291520.

The previous prime is 13231101011. The next prime is 13231101061. The reversal of 13231101020 is 2010113231.

It is a junction number, because it is equal to n+sod(n) for n = 13231100986 and 13231101004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188360 + ... + 248880.

It is an arithmetic number, because the mean of its divisors is an integer number (613874646).

Almost surely, 2^13231101020 is an apocalyptic number.

13231101020 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 13231101020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14732991504).

13231101020 is an abundant number, since it is smaller than the sum of its proper divisors (16234881988).

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

13231101020 is a wasteful number, since it uses less digits than its factorization.

13231101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61190 (or 61188 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13231101020 its reverse (2010113231), we get a palindrome (15241214251).

The spelling of 13231101020 in words is "thirteen billion, two hundred thirty-one million, one hundred one thousand, twenty".