3121212323 has 2 divisors, whose sum is σ = 3121212324. Its totient is φ = 3121212322.

The previous prime is 3121212317. The next prime is 3121212329. The reversal of 3121212323 is 3232121213.

It is a balanced prime because it is at equal distance from previous prime (3121212317) and next prime (3121212329).

It is an emirp because it is prime and its reverse (3232121213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3121212323 - 2⁴ = 3121212307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121212295 and 3121212304.

It is not a weakly prime, because it can be changed into another prime (3121212329) 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 as a sum of consecutive naturals, namely, 1560606161 + 1560606162.

It is an arithmetic number, because the mean of its divisors is an integer number (1560606162).

Almost surely, 2^3121212323 is an apocalyptic number.

3121212323 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121212323 is an equidigital number, since it uses as much as digits as its factorization.

3121212323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 3121212323 is about 55867.8111527559. The cubic root of 3121212323 is about 1461.4179511142.

Adding to 3121212323 its reverse (3232121213), we get a palindrome (6353333536).

The spelling of 3121212323 in words is "three billion, one hundred twenty-one million, two hundred twelve thousand, three hundred twenty-three".