3116421043 has 2 divisors, whose sum is σ = 3116421044. Its totient is φ = 3116421042.

The previous prime is 3116421031. The next prime is 3116421047. The reversal of 3116421043 is 3401246113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3116421043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3116420999 and 3116421017.

It is not a weakly prime, because it can be changed into another prime (3116421047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558210521 + 1558210522.

It is an arithmetic number, because the mean of its divisors is an integer number (1558210522).

Almost surely, 2^3116421043 is an apocalyptic number.

3116421043 is a deficient number, since it is larger than the sum of its proper divisors (1).

3116421043 is an equidigital number, since it uses as much as digits as its factorization.

3116421043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 3116421043 is about 55824.9141781696. The cubic root of 3116421043 is about 1460.6697751043.

Adding to 3116421043 its reverse (3401246113), we get a palindrome (6517667156).

The spelling of 3116421043 in words is "three billion, one hundred sixteen million, four hundred twenty-one thousand, forty-three".