131343443200040 has 64 divisors (see below), whose sum is σ = 313014007875600. Its totient is φ = 49429944659968.

The previous prime is 131343443199973. The next prime is 131343443200043. The reversal of 131343443200040 is 40002344343131.

It can be written as a sum of positive squares in 8 ways, for example, as 106408261131844 + 24935182068196 = 10315438^2 + 4993514^2 .

It is a super-2 number, since 2×131343443200040² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131343443200043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31220939 + ... + 35177178.

Almost surely, 2^{131343443200040} is an apocalyptic number.

131343443200040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131343443200040 is an abundant number, since it is smaller than the sum of its proper divisors (181670564675560).

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

131343443200040 is a wasteful number, since it uses less digits than its factorization.

131343443200040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66401054 (or 66401050 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 131343443200040 its reverse (40002344343131), we get a palindrome (171345787543171).

The spelling of 131343443200040 in words is "one hundred thirty-one trillion, three hundred forty-three billion, four hundred forty-three million, two hundred thousand, forty".