1321423107 has 8 divisors (see below), whose sum is σ = 1865538576. Its totient is φ = 829128192.

The previous prime is 1321423093. The next prime is 1321423109. The reversal of 1321423107 is 7013241231.

It is a happy number.

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

It is not a de Polignac number, because 1321423107 - 2⁴ = 1321423091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321423109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12955078 + ... + 12955179.

It is an arithmetic number, because the mean of its divisors is an integer number (233192322).

Almost surely, 2^1321423107 is an apocalyptic number.

1321423107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1321423107 is a deficient number, since it is larger than the sum of its proper divisors (544115469).

1321423107 is a wasteful number, since it uses less digits than its factorization.

1321423107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25910277.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 1321423107 is about 36351.3838388582. The cubic root of 1321423107 is about 1097.3553843867.

Adding to 1321423107 its reverse (7013241231), we get a palindrome (8334664338).

The spelling of 1321423107 in words is "one billion, three hundred twenty-one million, four hundred twenty-three thousand, one hundred seven".