15120443323 has 8 divisors (see below), whose sum is σ = 15314842592. Its totient is φ = 14926830336.

The previous prime is 15120443311. The next prime is 15120443339. The reversal of 15120443323 is 32334402151.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15120443323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15120443291 and 15120443300.

It is not an unprimeable number, because it can be changed into a prime (15120443383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157815 + ... + 234832.

It is an arithmetic number, because the mean of its divisors is an integer number (1914355324).

Almost surely, 2^15120443323 is an apocalyptic number.

15120443323 is a deficient number, since it is larger than the sum of its proper divisors (194399269).

15120443323 is an equidigital number, since it uses as much as digits as its factorization.

15120443323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393141.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 15120443323 its reverse (32334402151), we get a palindrome (47454845474).

The spelling of 15120443323 in words is "fifteen billion, one hundred twenty million, four hundred forty-three thousand, three hundred twenty-three".