12103531424421 has 8 divisors (see below), whose sum is σ = 16146221350560. Its totient is φ = 8064931223952.

The previous prime is 12103531424407. The next prime is 12103531424429. The reversal of 12103531424421 is 12442413530121.

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

It is not a de Polignac number, because 12103531424421 - 2⁷ = 12103531424293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103531424429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022424511 + ... + 1022436348.

It is an arithmetic number, because the mean of its divisors is an integer number (2018277668820).

Almost surely, 2^{12103531424421} is an apocalyptic number.

It is an amenable number.

12103531424421 is a deficient number, since it is larger than the sum of its proper divisors (4042689926139).

12103531424421 is a wasteful number, since it uses less digits than its factorization.

12103531424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044862835.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 12103531424421 its reverse (12442413530121), we get a palindrome (24545944954542).

The spelling of 12103531424421 in words is "twelve trillion, one hundred three billion, five hundred thirty-one million, four hundred twenty-four thousand, four hundred twenty-one".