131101334420020 has 36 divisors (see below), whose sum is σ = 278180339574060. Its totient is φ = 51899909634048.

The previous prime is 131101334419981. The next prime is 131101334420033. The reversal of 131101334420020 is 20024433101131.

It can be written as a sum of positive squares in 6 ways, for example, as 15147461616676 + 115953872803344 = 3891974^2 + 10768188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348152065 + ... + 348528424.

It is an arithmetic number, because the mean of its divisors is an integer number (7727231654835).

Almost surely, 2^{131101334420020} is an apocalyptic number.

131101334420020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131101334420020 is an abundant number, since it is smaller than the sum of its proper divisors (147079005154040).

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

131101334420020 is an equidigital number, since it uses as much as digits as its factorization.

131101334420020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696680692 (or 696680593 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131101334420020 its reverse (20024433101131), we get a palindrome (151125767521151).

The spelling of 131101334420020 in words is "one hundred thirty-one trillion, one hundred one billion, three hundred thirty-four million, four hundred twenty thousand, twenty".