1231004512 has 12 divisors (see below), whose sum is σ = 2423540196. Its totient is φ = 615502240.

The previous prime is 1231004503. The next prime is 1231004531. The reversal of 1231004512 is 2154001321.

It is a self number, because there is not a number n which added to its sum of digits gives 1231004512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19234414 + ... + 19234477.

It is an arithmetic number, because the mean of its divisors is an integer number (201961683).

Almost surely, 2^1231004512 is an apocalyptic number.

It is an amenable number.

1231004512 is a deficient number, since it is larger than the sum of its proper divisors (1192535684).

1231004512 is an equidigital number, since it uses as much as digits as its factorization.

1231004512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38468901 (or 38468893 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1231004512 is about 35085.6738855049. The cubic root of 1231004512 is about 1071.7328639336.

Adding to 1231004512 its reverse (2154001321), we get a palindrome (3385005833).

The spelling of 1231004512 in words is "one billion, two hundred thirty-one million, four thousand, five hundred twelve".