131212130 has 64 divisors (see below), whose sum is σ = 277661952. Its totient is φ = 43718400.

The previous prime is 131212111. The next prime is 131212183. The reversal of 131212130 is 31212131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 473552 + ... + 473828.

It is an arithmetic number, because the mean of its divisors is an integer number (4338468).

Almost surely, 2^131212130 is an apocalyptic number.

131212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131212130 is an abundant number, since it is smaller than the sum of its proper divisors (146449822).

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

131212130 is a wasteful number, since it uses less digits than its factorization.

131212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131212130 is about 11454.7863358511. The cubic root of 131212130 is about 508.1492963343.

Adding to 131212130 its reverse (31212131), we get a palindrome (162424261).

Subtracting from 131212130 its reverse (31212131), we obtain a palindrome (99999999).

It can be divided in two parts, 13121 and 2130, that added together give a palindrome (15251).

The spelling of 131212130 in words is "one hundred thirty-one million, two hundred twelve thousand, one hundred thirty".