131403442342440 has 64 divisors (see below), whose sum is σ = 394232269412160. Its totient is φ = 35038967523840.

The previous prime is 131403442342427. The next prime is 131403442342451. The reversal of 131403442342440 is 44243244304131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28310029 + ... + 32623068.

It is an arithmetic number, because the mean of its divisors is an integer number (6159879209565).

Almost surely, 2^{131403442342440} is an apocalyptic number.

131403442342440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403442342440 is an abundant number, since it is smaller than the sum of its proper divisors (262828827069720).

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

131403442342440 is a wasteful number, since it uses less digits than its factorization.

131403442342440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60951082 (or 60951078 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 131403442342440 its reverse (44243244304131), we get a palindrome (175646686646571).

The spelling of 131403442342440 in words is "one hundred thirty-one trillion, four hundred three billion, four hundred forty-two million, three hundred forty-two thousand, four hundred forty".