131233111310220 has 192 divisors, whose sum is σ = 373875467212800. Its totient is φ = 34388290759680.

The previous prime is 131233111310219. The next prime is 131233111310243. The reversal of 131233111310220 is 22013111332131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1238030262 + ... + 1238136258.

It is an arithmetic number, because the mean of its divisors is an integer number (1947268058400).

Almost surely, 2^{131233111310220} is an apocalyptic number.

131233111310220 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 131233111310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186937733606400).

131233111310220 is an abundant number, since it is smaller than the sum of its proper divisors (242642355902580).

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

131233111310220 is a wasteful number, since it uses less digits than its factorization.

131233111310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107328 (or 107326 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 131233111310220 its reverse (22013111332131), we get a palindrome (153246222642351).

The spelling of 131233111310220 in words is "one hundred thirty-one trillion, two hundred thirty-three billion, one hundred eleven million, three hundred ten thousand, two hundred twenty".