1213041412 has 12 divisors (see below), whose sum is σ = 2315806416. Its totient is φ = 551382440.

The previous prime is 1213041397. The next prime is 1213041419. The reversal of 1213041412 is 2141403121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213041412.

It is not an unprimeable number, because it can be changed into a prime (1213041419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13784518 + ... + 13784605.

It is an arithmetic number, because the mean of its divisors is an integer number (192983868).

Almost surely, 2^1213041412 is an apocalyptic number.

It is an amenable number.

1213041412 is a deficient number, since it is larger than the sum of its proper divisors (1102765004).

1213041412 is a wasteful number, since it uses less digits than its factorization.

1213041412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27569138 (or 27569136 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1213041412 is about 34828.7440485585. The cubic root of 1213041412 is about 1066.4943094342.

Adding to 1213041412 its reverse (2141403121), we get a palindrome (3354444533).

The spelling of 1213041412 in words is "one billion, two hundred thirteen million, forty-one thousand, four hundred twelve".