131404041121220 has 96 divisors (see below), whose sum is σ = 315584228736000. Its totient is φ = 45022173225984.

The previous prime is 131404041121219. The next prime is 131404041121237. The reversal of 131404041121220 is 22121140404131.

It is a self number, because there is not a number n which added to its sum of digits gives 131404041121220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2440204856 + ... + 2440258704.

It is an arithmetic number, because the mean of its divisors is an integer number (3287335716000).

Almost surely, 2^{131404041121220} is an apocalyptic number.

131404041121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131404041121220 is an abundant number, since it is smaller than the sum of its proper divisors (184180187614780).

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

131404041121220 is a wasteful number, since it uses less digits than its factorization.

131404041121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65397 (or 65395 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 131404041121220 its reverse (22121140404131), we get a palindrome (153525181525351).

The spelling of 131404041121220 in words is "one hundred thirty-one trillion, four hundred four billion, forty-one million, one hundred twenty-one thousand, two hundred twenty".