2343212321 has 2 divisors, whose sum is σ = 2343212322. Its totient is φ = 2343212320.

The previous prime is 2343212303. The next prime is 2343212359. The reversal of 2343212321 is 1232123432.

2343212321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1366337296 + 976875025 = 36964^2 + 31255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2343212321 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2343212621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171606160 + 1171606161.

It is an arithmetic number, because the mean of its divisors is an integer number (1171606161).

Almost surely, 2^2343212321 is an apocalyptic number.

It is an amenable number.

2343212321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2343212321 is an equidigital number, since it uses as much as digits as its factorization.

2343212321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 23.

The square root of 2343212321 is about 48406.7383842374. The cubic root of 2343212321 is about 1328.2216269636.

Adding to 2343212321 its reverse (1232123432), we get a palindrome (3575335753).

Subtracting from 2343212321 its reverse (1232123432), we obtain a square (1111088889 = 33333²).

It can be divided in two parts, 23432 and 12321, that added together give a palindrome (35753).

The spelling of 2343212321 in words is "two billion, three hundred forty-three million, two hundred twelve thousand, three hundred twenty-one".