131301020 has 96 divisors (see below), whose sum is σ = 308206080. Its totient is φ = 46759680.

The previous prime is 131300989. The next prime is 131301029. The reversal of 131301020 is 20103131.

It is a junction number, because it is equal to n+sod(n) for n = 131300992 and 131301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131301029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 725330 + ... + 725510.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 2^131301020 is an apocalyptic number.

131301020 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 131301020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154103040).

131301020 is an abundant number, since it is smaller than the sum of its proper divisors (176905060).

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

131301020 is a wasteful number, since it uses less digits than its factorization.

131301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131301020 is about 11458.6657163912. The cubic root of 131301020 is about 508.2640194541.

Adding to 131301020 its reverse (20103131), we get a palindrome (151404151).

The spelling of 131301020 in words is "one hundred thirty-one million, three hundred one thousand, twenty".