3121003242 has 48 divisors (see below), whose sum is σ = 8182804032. Its totient is φ = 839260800.

The previous prime is 3121003241. The next prime is 3121003321. The reversal of 3121003242 is 2423001213.

It is a super-2 number, since 2×3121003242² = 19481322473149021128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3121003241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726384 + ... + 730667.

It is an arithmetic number, because the mean of its divisors is an integer number (170475084).

Almost surely, 2^3121003242 is an apocalyptic number.

3121003242 is an abundant number, since it is smaller than the sum of its proper divisors (5061800790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121003242 is a wasteful number, since it uses less digits than its factorization.

3121003242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457083 (or 1457080 counting only the distinct ones).

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

The square root of 3121003242 is about 55865.9399097518. The cubic root of 3121003242 is about 1461.3853183295.

Adding to 3121003242 its reverse (2423001213), we get a palindrome (5544004455).

The spelling of 3121003242 in words is "three billion, one hundred twenty-one million, three thousand, two hundred forty-two".