12103200015 has 32 divisors (see below), whose sum is σ = 19695423936. Its totient is φ = 6345077760.

The previous prime is 12103199993. The next prime is 12103200019. The reversal of 12103200015 is 51000230121.

It is not a de Polignac number, because 12103200015 - 2⁷ = 12103199887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 12103199967 and 12103200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103200019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1820277 + ... + 1826913.

It is an arithmetic number, because the mean of its divisors is an integer number (615481998).

Almost surely, 2^12103200015 is an apocalyptic number.

12103200015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12103200015 is a deficient number, since it is larger than the sum of its proper divisors (7592223921).

12103200015 is a wasteful number, since it uses less digits than its factorization.

12103200015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699.

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 12103200015 its reverse (51000230121), we get a palindrome (63103430136).

The spelling of 12103200015 in words is "twelve billion, one hundred three million, two hundred thousand, fifteen".