131302212 has 24 divisors (see below), whose sum is σ = 306580512. Its totient is φ = 43737600.

The previous prime is 131302211. The next prime is 131302229. The reversal of 131302212 is 212203131.

It is a junction number, because it is equal to n+sod(n) for n = 131302191 and 131302200.

It is not an unprimeable number, because it can be changed into a prime (131302211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21412 + ... + 26852.

It is an arithmetic number, because the mean of its divisors is an integer number (12774188).

Almost surely, 2^131302212 is an apocalyptic number.

131302212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131302212 is an abundant number, since it is smaller than the sum of its proper divisors (175278300).

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

131302212 is a wasteful number, since it uses less digits than its factorization.

131302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459 (or 7457 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131302212 is about 11458.7177293099. The cubic root of 131302212 is about 508.2655575201.

Adding to 131302212 its reverse (212203131), we get a palindrome (343505343).

The spelling of 131302212 in words is "one hundred thirty-one million, three hundred two thousand, two hundred twelve".