15012023323 has 32 divisors (see below), whose sum is σ = 16854635520. Its totient is φ = 13255920000.

The previous prime is 15012023321. The next prime is 15012023347. The reversal of 15012023323 is 32332021051.

It is a cyclic number.

It is not a de Polignac number, because 15012023323 - 2¹ = 15012023321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15012023294 and 15012023303.

It is not an unprimeable number, because it can be changed into a prime (15012023321) 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 31 ways as a sum of consecutive naturals, for example, 23202186 + ... + 23202832.

It is an arithmetic number, because the mean of its divisors is an integer number (526707360).

Almost surely, 2^15012023323 is an apocalyptic number.

15012023323 is a deficient number, since it is larger than the sum of its proper divisors (1842612197).

15012023323 is a wasteful number, since it uses less digits than its factorization.

15012023323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 15012023323 its reverse (32332021051), we get a palindrome (47344044374).

The spelling of 15012023323 in words is "fifteen billion, twelve million, twenty-three thousand, three hundred twenty-three".