131403031431440 has 40 divisors (see below), whose sum is σ = 305527355706048. Its totient is φ = 52558579002240.

The previous prime is 131403031431431. The next prime is 131403031431449. The reversal of 131403031431440 is 44134130304131.

It is an interprime number because it is at equal distance from previous prime (131403031431431) and next prime (131403031431449).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 131403031431397 and 131403031431406.

It is not an unprimeable number, because it can be changed into a prime (131403031431449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39542516 + ... + 42736595.

Almost surely, 2^{131403031431440} is an apocalyptic number.

131403031431440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403031431440 is an abundant number, since it is smaller than the sum of its proper divisors (174124324274608).

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

131403031431440 is a wasteful number, since it uses less digits than its factorization.

131403031431440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82299087 (or 82299081 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 131403031431440 its reverse (44134130304131), we get a palindrome (175537161735571).

The spelling of 131403031431440 in words is "one hundred thirty-one trillion, four hundred three billion, thirty-one million, four hundred thirty-one thousand, four hundred forty".