15120201530 has 32 divisors (see below), whose sum is σ = 31108662144. Its totient is φ = 5183361216.

The previous prime is 15120201521. The next prime is 15120201559. The reversal of 15120201530 is 3510202151.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938624 + ... + 954596.

It is an arithmetic number, because the mean of its divisors is an integer number (972145692).

Almost surely, 2^15120201530 is an apocalyptic number.

15120201530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15120201530 is an abundant number, since it is smaller than the sum of its proper divisors (15988460614).

15120201530 is a wasteful number, since it uses less digits than its factorization.

15120201530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29510.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 15120201530 its reverse (3510202151), we get a palindrome (18630403681).

The spelling of 15120201530 in words is "fifteen billion, one hundred twenty million, two hundred one thousand, five hundred thirty".