131230301202020 has 24 divisors (see below), whose sum is σ = 275591862027384. Its totient is φ = 52490552956416.

The previous prime is 131230301201917. The next prime is 131230301202037. The reversal of 131230301202020 is 20202103032131.

It can be written as a sum of positive squares in 4 ways, for example, as 76620891128896 + 54609410073124 = 8753336^2 + 7389818^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131230301201983 and 131230301202001.

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, 97283669 + ... + 98623388.

It is an arithmetic number, because the mean of its divisors is an integer number (11482994251141).

Almost surely, 2^{131230301202020} is an apocalyptic number.

131230301202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131230301202020 is an abundant number, since it is smaller than the sum of its proper divisors (144361560825364).

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

131230301202020 is a wasteful number, since it uses less digits than its factorization.

131230301202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195940559 (or 195940557 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131230301202020 its reverse (20202103032131), we get a palindrome (151432404234151).

The spelling of 131230301202020 in words is "one hundred thirty-one trillion, two hundred thirty billion, three hundred one million, two hundred two thousand, twenty".