10312434221 has 4 divisors (see below), whose sum is σ = 10314999072. Its totient is φ = 10309869372.

The previous prime is 10312434179. The next prime is 10312434227. The reversal of 10312434221 is 12243421301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12243421301 = 17 ⋅720201253.

It is a cyclic number.

It is not a de Polignac number, because 10312434221 - 2¹⁸ = 10312172077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312434227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276385 + ... + 1284438.

It is an arithmetic number, because the mean of its divisors is an integer number (2578749768).

Almost surely, 2^10312434221 is an apocalyptic number.

It is an amenable number.

10312434221 is a deficient number, since it is larger than the sum of its proper divisors (2564851).

10312434221 is an equidigital number, since it uses as much as digits as its factorization.

10312434221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564850.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 10312434221 its reverse (12243421301), we get a palindrome (22555855522).

The spelling of 10312434221 in words is "ten billion, three hundred twelve million, four hundred thirty-four thousand, two hundred twenty-one".