421312043242111 has 32 divisors (see below), whose sum is σ = 509976909066240. Its totient is φ = 339779378489856.

The previous prime is 421312043242081. The next prime is 421312043242183. The reversal of 421312043242111 is 111242340213124.

It is a cyclic number.

It is not a de Polignac number, because 421312043242111 - 2⁷ = 421312043241983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421312043242711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6396372600 + ... + 6396438466.

It is an arithmetic number, because the mean of its divisors is an integer number (15936778408320).

Almost surely, 2^{421312043242111} is an apocalyptic number.

421312043242111 is a deficient number, since it is larger than the sum of its proper divisors (88664865824129).

421312043242111 is a wasteful number, since it uses less digits than its factorization.

421312043242111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81303.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 421312043242111 its reverse (111242340213124), we get a palindrome (532554383455235).

The spelling of 421312043242111 in words is "four hundred twenty-one trillion, three hundred twelve billion, forty-three million, two hundred forty-two thousand, one hundred eleven".