3121430434 has 8 divisors (see below), whose sum is σ = 4685426460. Its totient is φ = 1559621616.

The previous prime is 3121430423. The next prime is 3121430443. The reversal of 3121430434 is 4340341213.

It can be written as a sum of positive squares in 2 ways, for example, as 2839291225 + 282139209 = 53285^2 + 16797^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3121430399 and 3121430408.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 543229 + ... + 548944.

Almost surely, 2^3121430434 is an apocalyptic number.

3121430434 is a deficient number, since it is larger than the sum of its proper divisors (1563996026).

3121430434 is a wasteful number, since it uses less digits than its factorization.

3121430434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093604.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 3121430434 is about 55869.7631460882. The cubic root of 3121430434 is about 1461.4519917234.

Adding to 3121430434 its reverse (4340341213), we get a palindrome (7461771647).

The spelling of 3121430434 in words is "three billion, one hundred twenty-one million, four hundred thirty thousand, four hundred thirty-four".