131020224442340 has 48 divisors (see below), whose sum is σ = 291363978150000. Its totient is φ = 49319054733312.

The previous prime is 131020224442333. The next prime is 131020224442351. The reversal of 131020224442340 is 43244422020131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 21640880704576 + 109379343737764 = 4651976^2 + 10458458^2 .

It is a super-2 number, since 2×131020224442340² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131020224442297 and 131020224442306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21536465 + ... + 26941784.

It is an arithmetic number, because the mean of its divisors is an integer number (6070082878125).

Almost surely, 2^{131020224442340} is an apocalyptic number.

131020224442340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131020224442340 is an abundant number, since it is smaller than the sum of its proper divisors (160343753707660).

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

131020224442340 is a wasteful number, since it uses less digits than its factorization.

131020224442340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48486224 (or 48486222 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 131020224442340 its reverse (43244422020131), we get a palindrome (174264646462471).

The spelling of 131020224442340 in words is "one hundred thirty-one trillion, twenty billion, two hundred twenty-four million, four hundred forty-two thousand, three hundred forty".