131321244312120 has 256 divisors, whose sum is σ = 417893304729600. Its totient is φ = 32920999948800.

The previous prime is 131321244312103. The next prime is 131321244312127. The reversal of 131321244312120 is 21213442123131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321244312127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223212345 + ... + 223799895.

It is an arithmetic number, because the mean of its divisors is an integer number (1632395721600).

Almost surely, 2^{131321244312120} is an apocalyptic number.

131321244312120 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 131321244312120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208946652364800).

131321244312120 is an abundant number, since it is smaller than the sum of its proper divisors (286572060417480).

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

131321244312120 is a wasteful number, since it uses less digits than its factorization.

131321244312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588338 (or 588334 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 131321244312120 its reverse (21213442123131), we get a palindrome (152534686435251).

The spelling of 131321244312120 in words is "one hundred thirty-one trillion, three hundred twenty-one billion, two hundred forty-four million, three hundred twelve thousand, one hundred twenty".