131141403020420 has 24 divisors (see below), whose sum is σ = 296581326831384. Its totient is φ = 48421441115136.

The previous prime is 131141403020417. The next prime is 131141403020423. The reversal of 131141403020420 is 24020304141131.

It is an interprime number because it is at equal distance from previous prime (131141403020417) and next prime (131141403020423).

It can be written as a sum of positive squares in 4 ways, for example, as 4063038427204 + 127078364593216 = 2015698^2 + 11272904^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 131141403020420.

It is not an unprimeable number, because it can be changed into a prime (131141403020423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252195005549 + ... + 252195006068.

It is an arithmetic number, because the mean of its divisors is an integer number (12357555284641).

Almost surely, 2^{131141403020420} is an apocalyptic number.

131141403020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131141403020420 is an abundant number, since it is smaller than the sum of its proper divisors (165439923810964).

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

131141403020420 is a wasteful number, since it uses less digits than its factorization.

131141403020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504390011639 (or 504390011637 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 131141403020420 its reverse (24020304141131), we get a palindrome (155161707161551).

The spelling of 131141403020420 in words is "one hundred thirty-one trillion, one hundred forty-one billion, four hundred three million, twenty thousand, four hundred twenty".