12011342421 has 8 divisors (see below), whose sum is σ = 17247055840. Its totient is φ = 7391595312.

The previous prime is 12011342407. The next prime is 12011342479. The reversal of 12011342421 is 12424311021.

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

It is not a de Polignac number, because 12011342421 - 2¹¹ = 12011340373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011342621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153991531 + ... + 153991608.

It is an arithmetic number, because the mean of its divisors is an integer number (2155881980).

Almost surely, 2^12011342421 is an apocalyptic number.

It is an amenable number.

12011342421 is a deficient number, since it is larger than the sum of its proper divisors (5235713419).

12011342421 is a wasteful number, since it uses less digits than its factorization.

12011342421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307983155.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12011342421 its reverse (12424311021), we get a palindrome (24435653442).

The spelling of 12011342421 in words is "twelve billion, eleven million, three hundred forty-two thousand, four hundred twenty-one".