3121123004 has 12 divisors (see below), whose sum is σ = 5512075800. Its totient is φ = 1546244208.

The previous prime is 3121123001. The next prime is 3121123013. The reversal of 3121123004 is 4003211213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121123001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3578834 + ... + 3579705.

It is an arithmetic number, because the mean of its divisors is an integer number (459339650).

Almost surely, 2^3121123004 is an apocalyptic number.

It is an amenable number.

3121123004 is a deficient number, since it is larger than the sum of its proper divisors (2390952796).

3121123004 is a wasteful number, since it uses less digits than its factorization.

3121123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7158652 (or 7158650 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3121123004 is about 55867.0117690216. The cubic root of 3121123004 is about 1461.4040106298.

Adding to 3121123004 its reverse (4003211213), we get a palindrome (7124334217).

The spelling of 3121123004 in words is "three billion, one hundred twenty-one million, one hundred twenty-three thousand, four".