131212302 has 24 divisors (see below), whose sum is σ = 282829176. Its totient is φ = 40341888.

The previous prime is 131212261. The next prime is 131212303. The reversal of 131212302 is 203212131.

It is a super-2 number, since 2×131212302² = 34433336392278408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131212303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100518 + ... + 101814.

It is an arithmetic number, because the mean of its divisors is an integer number (11784549).

Almost surely, 2^131212302 is an apocalyptic number.

131212302 is an abundant number, since it is smaller than the sum of its proper divisors (151616874).

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

131212302 is an equidigital number, since it uses as much as digits as its factorization.

131212302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 1315 counting only the distinct ones).

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

The square root of 131212302 is about 11454.7938436272. The cubic root of 131212302 is about 508.1495183708.

Adding to 131212302 its reverse (203212131), we get a palindrome (334424433).

The spelling of 131212302 in words is "one hundred thirty-one million, two hundred twelve thousand, three hundred two".