131201404323440 has 120 divisors (see below), whose sum is σ = 339888580415664. Its totient is φ = 47056045132800.

The previous prime is 131201404323439. The next prime is 131201404323497. The reversal of 131201404323440 is 44323404102131.

It is a junction number, because it is equal to n+sod(n) for n = 131201404323397 and 131201404323406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92128046 + ... + 93541325.

Almost surely, 2^{131201404323440} is an apocalyptic number.

131201404323440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201404323440 is an abundant number, since it is smaller than the sum of its proper divisors (208687176092224).

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

131201404323440 is a wasteful number, since it uses less digits than its factorization.

131201404323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185669479 (or 185669462 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 131201404323440 its reverse (44323404102131), we get a palindrome (175524808425571).

The spelling of 131201404323440 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, three hundred twenty-three thousand, four hundred forty".