12421111013 has 8 divisors (see below), whose sum is σ = 13157774208. Its totient is φ = 11685115584.

The previous prime is 12421110983. The next prime is 12421111019. The reversal of 12421111013 is 31011112421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12421111013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12421110982 and 12421111000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421111019) 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, 128381 + ... + 203282.

It is an arithmetic number, because the mean of its divisors is an integer number (1644721776).

Almost surely, 2^12421111013 is an apocalyptic number.

It is an amenable number.

12421111013 is a deficient number, since it is larger than the sum of its proper divisors (736663195).

12421111013 is a wasteful number, since it uses less digits than its factorization.

12421111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333883.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12421111013 its reverse (31011112421), we get a palindrome (43432223434).

The spelling of 12421111013 in words is "twelve billion, four hundred twenty-one million, one hundred eleven thousand, thirteen".