131403020200420 has 96 divisors (see below), whose sum is σ = 277167791628000. Its totient is φ = 52329194717184.

The previous prime is 131403020200373. The next prime is 131403020200447. The reversal of 131403020200420 is 24002020304131.

It can be written as a sum of positive squares in 16 ways, for example, as 2878716235684 + 128524303964736 = 1696678^2 + 11336856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131403020200391 and 131403020200400.

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, 8114795844 + ... + 8114812036.

It is an arithmetic number, because the mean of its divisors is an integer number (2887164496125).

Almost surely, 2^{131403020200420} is an apocalyptic number.

131403020200420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403020200420 is an abundant number, since it is smaller than the sum of its proper divisors (145764771427580).

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

131403020200420 is a wasteful number, since it uses less digits than its factorization.

131403020200420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18577 (or 18575 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 131403020200420 its reverse (24002020304131), we get a palindrome (155405040504551).

The spelling of 131403020200420 in words is "one hundred thirty-one trillion, four hundred three billion, twenty million, two hundred thousand, four hundred twenty".