421135021434111 has 8 divisors (see below), whose sum is σ = 563104051324080. Its totient is φ = 279961336250112.

The previous prime is 421135021434089. The next prime is 421135021434163. The reversal of 421135021434111 is 111434120531124.

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

It is not a de Polignac number, because 421135021434111 - 2¹¹ = 421135021432063 is a prime.

It is a super-2 number, since 2×421135021434111² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421135021434311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198836175256 + ... + 198836177373.

It is an arithmetic number, because the mean of its divisors is an integer number (70388006415510).

Almost surely, 2^{421135021434111} is an apocalyptic number.

421135021434111 is a deficient number, since it is larger than the sum of its proper divisors (141969029889969).

421135021434111 is a wasteful number, since it uses less digits than its factorization.

421135021434111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397672352985.

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 421135021434111 its reverse (111434120531124), we get a palindrome (532569141965235).

The spelling of 421135021434111 in words is "four hundred twenty-one trillion, one hundred thirty-five billion, twenty-one million, four hundred thirty-four thousand, one hundred eleven".