6128131212 has 72 divisors (see below), whose sum is σ = 18274593792. Its totient is φ = 1694412000.

The previous prime is 6128131169. The next prime is 6128131213. The reversal of 6128131212 is 2121318216.

6128131212 is a `hidden beast` number, since 61 + 281 + 312 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (6128131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384414 + ... + 400037.

Almost surely, 2^6128131212 is an apocalyptic number.

6128131212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6128131212 is an abundant number, since it is smaller than the sum of its proper divisors (12146462580).

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

6128131212 is a wasteful number, since it uses less digits than its factorization.

6128131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784499 (or 784494 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 6128131212 is about 78282.3812361377. The cubic root of 6128131212 is about 1829.9645858953.

Adding to 6128131212 its reverse (2121318216), we get a palindrome (8249449428).

The spelling of 6128131212 in words is "six billion, one hundred twenty-eight million, one hundred thirty-one thousand, two hundred twelve".