3121004043 has 12 divisors (see below), whose sum is σ = 4518881640. Its totient is φ = 2075701056.

The previous prime is 3121003999. The next prime is 3121004053. The reversal of 3121004043 is 3404001213.

3121004043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3121004043 - 2⁶ = 3121003979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3121004053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410046 + ... + 417587.

It is an arithmetic number, because the mean of its divisors is an integer number (376573470).

Almost surely, 2^3121004043 is an apocalyptic number.

3121004043 is a deficient number, since it is larger than the sum of its proper divisors (1397877597).

3121004043 is a wasteful number, since it uses less digits than its factorization.

3121004043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828058 (or 828055 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3121004043 is about 55865.9470786990. The cubic root of 3121004043 is about 1461.3854433501.

Adding to 3121004043 its reverse (3404001213), we get a palindrome (6525005256).

The spelling of 3121004043 in words is "three billion, one hundred twenty-one million, four thousand, forty-three".