131212204 has 6 divisors (see below), whose sum is σ = 229621364. Its totient is φ = 65606100.

The previous prime is 131212199. The next prime is 131212223. The reversal of 131212204 is 402212131.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16401522 + ... + 16401529.

Almost surely, 2^131212204 is an apocalyptic number.

It is an amenable number.

131212204 is a deficient number, since it is larger than the sum of its proper divisors (98409160).

131212204 is a wasteful number, since it uses less digits than its factorization.

131212204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32803055 (or 32803053 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 131212204 is about 11454.7895659414. The cubic root of 131212204 is about 508.1493918616.

Adding to 131212204 its reverse (402212131), we get a palindrome (533424335).

The spelling of 131212204 in words is "one hundred thirty-one million, two hundred twelve thousand, two hundred four".