1231041412 has 12 divisors (see below), whose sum is σ = 2155287820. Its totient is φ = 615244896.

The previous prime is 1231041401. The next prime is 1231041419. The reversal of 1231041412 is 2141401321.

It can be written as a sum of positive squares in 2 ways, for example, as 606341376 + 624700036 = 24624^2 + 24994^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1231041412.

It is not an unprimeable number, because it can be changed into a prime (1231041419) 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, 58743 + ... + 76894.

Almost surely, 2^1231041412 is an apocalyptic number.

It is an amenable number.

1231041412 is a deficient number, since it is larger than the sum of its proper divisors (924246408).

1231041412 is a wasteful number, since it uses less digits than its factorization.

1231041412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137910 (or 137908 counting only the distinct ones).

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

The square root of 1231041412 is about 35086.1997372186. The cubic root of 1231041412 is about 1071.7435724098.

Adding to 1231041412 its reverse (2141401321), we get a palindrome (3372442733).

The spelling of 1231041412 in words is "one billion, two hundred thirty-one million, forty-one thousand, four hundred twelve".