12322021013 has 4 divisors (see below), whose sum is σ = 12322738380. Its totient is φ = 12321303648.

The previous prime is 12322021007. The next prime is 12322021031. The reversal of 12322021013 is 31012022321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3071043889 + 9250977124 = 55417^2 + 96182^2 .

It is a cyclic number.

It is not a de Polignac number, because 12322021013 - 2³² = 8027053717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12322020982 and 12322021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322020013) 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, 332270 + ... + 367487.

It is an arithmetic number, because the mean of its divisors is an integer number (3080684595).

Almost surely, 2^12322021013 is an apocalyptic number.

It is an amenable number.

12322021013 is a deficient number, since it is larger than the sum of its proper divisors (717367).

12322021013 is an equidigital number, since it uses as much as digits as its factorization.

12322021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717366.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12322021013 its reverse (31012022321), we get a palindrome (43334043334).

The spelling of 12322021013 in words is "twelve billion, three hundred twenty-two million, twenty-one thousand, thirteen".