12042042103 has 12 divisors (see below), whose sum is σ = 14902410288. Its totient is φ = 9527768640.

The previous prime is 12042042071. The next prime is 12042042109. The reversal of 12042042103 is 30124024021.

It is not a de Polignac number, because 12042042103 - 2⁵ = 12042042071 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 (12042042109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5088438 + ... + 5090803.

It is an arithmetic number, because the mean of its divisors is an integer number (1241867524).

Almost surely, 2^12042042103 is an apocalyptic number.

12042042103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12042042103 is a deficient number, since it is larger than the sum of its proper divisors (2860368185).

12042042103 is a wasteful number, since it uses less digits than its factorization.

12042042103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179274 (or 10179261 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12042042103 its reverse (30124024021), we get a palindrome (42166066124).

The spelling of 12042042103 in words is "twelve billion, forty-two million, forty-two thousand, one hundred three".