1204123412 has 24 divisors (see below), whose sum is σ = 2165730504. Its totient is φ = 585366912.

The previous prime is 1204123373. The next prime is 1204123433. The reversal of 1204123412 is 2143214021.

It can be written as a sum of positive squares in 4 ways, for example, as 244734736 + 959388676 = 15644^2 + 30974^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329258 + ... + 332894.

It is an arithmetic number, because the mean of its divisors is an integer number (90238771).

Almost surely, 2^1204123412 is an apocalyptic number.

It is an amenable number.

1204123412 is a deficient number, since it is larger than the sum of its proper divisors (961607092).

1204123412 is a wasteful number, since it uses less digits than its factorization.

1204123412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915 (or 5913 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1204123412 is about 34700.4814375824. The cubic root of 1204123412 is about 1063.8743385713.

Adding to 1204123412 its reverse (2143214021), we get a palindrome (3347337433).

It can be divided in two parts, 12041 and 23412, that added together give a palindrome (35453).

The spelling of 1204123412 in words is "one billion, two hundred four million, one hundred twenty-three thousand, four hundred twelve".