15020502423 has 4 divisors (see below), whose sum is σ = 20027336568. Its totient is φ = 10013668280.

The previous prime is 15020502331. The next prime is 15020502443. The reversal of 15020502423 is 32420502051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15020502423 - 2¹² = 15020498327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15020502393 and 15020502402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15020502443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503417068 + ... + 2503417073.

It is an arithmetic number, because the mean of its divisors is an integer number (5006834142).

Almost surely, 2^15020502423 is an apocalyptic number.

15020502423 is a deficient number, since it is larger than the sum of its proper divisors (5006834145).

15020502423 is an equidigital number, since it uses as much as digits as its factorization.

15020502423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006834144.

The product of its (nonzero) digits is 2400, while the sum is 24.

The spelling of 15020502423 in words is "fifteen billion, twenty million, five hundred two thousand, four hundred twenty-three".