3121234012 has 24 divisors (see below), whose sum is σ = 6041311136. Its totient is φ = 1401634368.

The previous prime is 3121234009. The next prime is 3121234013. The reversal of 3121234012 is 2104321213.

It is a happy number.

It is a super-2 number, since 2×3121234012² = 19484203515331232288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121234013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809208 + ... + 813055.

Almost surely, 2^3121234012 is an apocalyptic number.

It is an amenable number.

3121234012 is a deficient number, since it is larger than the sum of its proper divisors (2920077124).

3121234012 is a wasteful number, since it uses less digits than its factorization.

3121234012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622317 (or 1622315 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3121234012 is about 55868.0052624040. The cubic root of 3121234012 is about 1461.4213361900.

Adding to 3121234012 its reverse (2104321213), we get a palindrome (5225555225).

The spelling of 3121234012 in words is "three billion, one hundred twenty-one million, two hundred thirty-four thousand, twelve".