421235538111 has 6 divisors (see below), whose sum is σ = 608451332840. Its totient is φ = 280823692068.

The previous prime is 421235538043. The next prime is 421235538127. The reversal of 421235538111 is 111835532124.

421235538111 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 3 + 5 + 538 + 111 = 666.

It is not a de Polignac number, because 421235538111 - 2¹⁴ = 421235521727 is a prime.

It is a super-3 number, since 3×421235538111³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421235538151) 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 5 ways as a sum of consecutive naturals, for example, 23401974331 + ... + 23401974348.

Almost surely, 2^421235538111 is an apocalyptic number.

421235538111 is a deficient number, since it is larger than the sum of its proper divisors (187215794729).

421235538111 is a wasteful number, since it uses less digits than its factorization.

421235538111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46803948685 (or 46803948682 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 421235538111 in words is "four hundred twenty-one billion, two hundred thirty-five million, five hundred thirty-eight thousand, one hundred eleven".