4320121326 has 16 divisors (see below), whose sum is σ = 9015905664. Its totient is φ = 1377429944.

The previous prime is 4320121313. The next prime is 4320121339. The reversal of 4320121326 is 6231210234.

It is an interprime number because it is at equal distance from previous prime (4320121313) and next prime (4320121339).

It is a junction number, because it is equal to n+sod(n) for n = 4320121296 and 4320121305.

It is a congruent number.

It is an unprimeable number.

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, 15652476 + ... + 15652751.

It is an arithmetic number, because the mean of its divisors is an integer number (563494104).

Almost surely, 2^4320121326 is an apocalyptic number.

4320121326 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4320121326 is an abundant number, since it is smaller than the sum of its proper divisors (4695784338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4320121326 is a wasteful number, since it uses less digits than its factorization.

4320121326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31305255.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4320121326 is about 65727.6298522927. The cubic root of 4320121326 is about 1628.6658165472.

The spelling of 4320121326 in words is "four billion, three hundred twenty million, one hundred twenty-one thousand, three hundred twenty-six".