12103244421 has 16 divisors (see below), whose sum is σ = 16173173760. Its totient is φ = 8051094000.

The previous prime is 12103244411. The next prime is 12103244429. The reversal of 12103244421 is 12444230121.

It is not a de Polignac number, because 12103244421 - 2⁵ = 12103244389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12103244391 and 12103244400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103244429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4691710 + ... + 4694288.

It is an arithmetic number, because the mean of its divisors is an integer number (1010823360).

Almost surely, 2^12103244421 is an apocalyptic number.

It is an amenable number.

12103244421 is a deficient number, since it is larger than the sum of its proper divisors (4069929339).

12103244421 is a wasteful number, since it uses less digits than its factorization.

12103244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12103244421 its reverse (12444230121), we get a palindrome (24547474542).

The spelling of 12103244421 in words is "twelve billion, one hundred three million, two hundred forty-four thousand, four hundred twenty-one".