131020203131300 has 144 divisors (see below), whose sum is σ = 328139642218752. Its totient is φ = 44477643456000.

The previous prime is 131020203131291. The next prime is 131020203131347. The reversal of 131020203131300 is 3131302020131.

It is a super-2 number, since 2×131020203131300² (a number of 29 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439733174 + ... + 440031026.

It is an arithmetic number, because the mean of its divisors is an integer number (2278747515408).

Almost surely, 2^{131020203131300} is an apocalyptic number.

131020203131300 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 131020203131300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164069821109376).

131020203131300 is an abundant number, since it is smaller than the sum of its proper divisors (197119439087452).

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

131020203131300 is a wasteful number, since it uses less digits than its factorization.

131020203131300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304078 (or 304071 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131020203131300 its reverse (3131302020131), we get a palindrome (134151505151431).

The spelling of 131020203131300 in words is "one hundred thirty-one trillion, twenty billion, two hundred three million, one hundred thirty-one thousand, three hundred".