3121222003 has 2 divisors, whose sum is σ = 3121222004. Its totient is φ = 3121222002.

The previous prime is 3121221997. The next prime is 3121222007. The reversal of 3121222003 is 3002221213.

It is a strong prime.

It is an emirp because it is prime and its reverse (3002221213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121222003 is a prime.

It is a super-2 number, since 2×3121222003² = 19484053584022664018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3121222007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560611001 + 1560611002.

It is an arithmetic number, because the mean of its divisors is an integer number (1560611002).

Almost surely, 2^3121222003 is an apocalyptic number.

3121222003 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121222003 is an equidigital number, since it uses as much as digits as its factorization.

3121222003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3121222003 is about 55867.8977857589. The cubic root of 3121222003 is about 1461.4194619066.

Adding to 3121222003 its reverse (3002221213), we get a palindrome (6123443216).

The spelling of 3121222003 in words is "three billion, one hundred twenty-one million, two hundred twenty-two thousand, three".