2321213407 has 2 divisors, whose sum is σ = 2321213408. Its totient is φ = 2321213406.

The previous prime is 2321213357. The next prime is 2321213449. The reversal of 2321213407 is 7043121232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321213407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321213207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160606703 + 1160606704.

It is an arithmetic number, because the mean of its divisors is an integer number (1160606704).

Almost surely, 2^2321213407 is an apocalyptic number.

2321213407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321213407 is an equidigital number, since it uses as much as digits as its factorization.

2321213407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2321213407 is about 48178.9726644311. The cubic root of 2321213407 is about 1324.0519444804.

Adding to 2321213407 its reverse (7043121232), we get a palindrome (9364334639).

The spelling of 2321213407 in words is "two billion, three hundred twenty-one million, two hundred thirteen thousand, four hundred seven".