12103543015 has 8 divisors (see below), whose sum is σ = 14529705408. Its totient is φ = 9679198560.

The previous prime is 12103543013. The next prime is 12103543031. The reversal of 12103543015 is 51034530121.

It is a happy number.

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

It is not a de Polignac number, because 12103543015 - 2¹ = 12103543013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103543013) 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 7 ways as a sum of consecutive naturals, for example, 439792 + ... + 466501.

It is an arithmetic number, because the mean of its divisors is an integer number (1816213176).

Almost surely, 2^12103543015 is an apocalyptic number.

12103543015 is a deficient number, since it is larger than the sum of its proper divisors (2426162393).

12103543015 is an equidigital number, since it uses as much as digits as its factorization.

12103543015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908969.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12103543015 in words is "twelve billion, one hundred three million, five hundred forty-three thousand, fifteen".