3121012442 has 8 divisors (see below), whose sum is σ = 4729782036. Its totient is φ = 1544418432.

The previous prime is 3121012417. The next prime is 3121012459. The reversal of 3121012442 is 2442101213.

It can be written as a sum of positive squares in 2 ways, for example, as 3119110801 + 1901641 = 55849^2 + 1379^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8043653 + ... + 8044040.

Almost surely, 2^3121012442 is an apocalyptic number.

3121012442 is a deficient number, since it is larger than the sum of its proper divisors (1608769594).

3121012442 is a wasteful number, since it uses less digits than its factorization.

3121012442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16087792.

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

The square root of 3121012442 is about 55866.0222496644. The cubic root of 3121012442 is about 1461.3867542707.

Adding to 3121012442 its reverse (2442101213), we get a palindrome (5563113655).

The spelling of 3121012442 in words is "three billion, one hundred twenty-one million, twelve thousand, four hundred forty-two".