131210420 has 48 divisors (see below), whose sum is σ = 318282048. Its totient is φ = 44904960.

The previous prime is 131210411. The next prime is 131210441. The reversal of 131210420 is 24012131.

It is a junction number, because it is equal to n+sod(n) for n = 131210395 and 131210404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13802 + ... + 21281.

It is an arithmetic number, because the mean of its divisors is an integer number (6630876).

Almost surely, 2^131210420 is an apocalyptic number.

131210420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131210420 is an abundant number, since it is smaller than the sum of its proper divisors (187071628).

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

131210420 is a wasteful number, since it uses less digits than its factorization.

131210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35120 (or 35118 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131210420 is about 11454.7116943204. The cubic root of 131210420 is about 508.1470888680.

Adding to 131210420 its reverse (24012131), we get a palindrome (155222551).

The spelling of 131210420 in words is "one hundred thirty-one million, two hundred ten thousand, four hundred twenty".