1323121013 has 8 divisors (see below), whose sum is σ = 1366222080. Its totient is φ = 1280046240.

The previous prime is 1323121003. The next prime is 1323121039. The reversal of 1323121013 is 3101213231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1323121013 - 2¹² = 1323116917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1323120982 and 1323121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323121003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182033 + ... + 189161.

It is an arithmetic number, because the mean of its divisors is an integer number (170777760).

Almost surely, 2^1323121013 is an apocalyptic number.

It is an amenable number.

1323121013 is a deficient number, since it is larger than the sum of its proper divisors (43101067).

1323121013 is an equidigital number, since it uses as much as digits as its factorization.

1323121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13147.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1323121013 is about 36374.7304182450. The cubic root of 1323121013 is about 1097.8251831551.

Adding to 1323121013 its reverse (3101213231), we get a palindrome (4424334244).

The spelling of 1323121013 in words is "one billion, three hundred twenty-three million, one hundred twenty-one thousand, thirteen".