12103542 has 24 divisors (see below), whose sum is σ = 28608840. Its totient is φ = 3667680.

The previous prime is 12103529. The next prime is 12103561. The reversal of 12103542 is 24530121.

12103542 is a `hidden beast` number, since 121 + 0 + 3 + 542 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30367 + ... + 30762.

It is an arithmetic number, because the mean of its divisors is an integer number (1192035).

Almost surely, 2^12103542 is an apocalyptic number.

12103542 is an abundant number, since it is smaller than the sum of its proper divisors (16505298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12103542 is a wasteful number, since it uses less digits than its factorization.

12103542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61148 (or 61145 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12103542 is about 3479.0145156351. The cubic root of 12103542 is about 229.5994414349.

Adding to 12103542 its reverse (24530121), we get a palindrome (36633663).

The spelling of 12103542 in words is "twelve million, one hundred three thousand, five hundred forty-two".