111412042400421 has 60 divisors (see below), whose sum is σ = 191733195655872. Its totient is φ = 62309469953808.

The previous prime is 111412042400381. The next prime is 111412042400467. The reversal of 111412042400421 is 124004240214111.

111412042400421 is a `hidden beast` number, since 1 + 1 + 1 + 412 + 0 + 4 + 240 + 0 + 4 + 2 + 1 = 666.

It is not a de Polignac number, because 111412042400421 - 2⁶ = 111412042400357 is a prime.

It is a super-3 number, since 3×111412042400421³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111412042400471) 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 59 ways as a sum of consecutive naturals, for example, 53833491 + ... + 55864736.

Almost surely, 2^{111412042400421} is an apocalyptic number.

It is an amenable number.

111412042400421 is a deficient number, since it is larger than the sum of its proper divisors (80321153255451).

111412042400421 is an equidigital number, since it uses as much as digits as its factorization.

111412042400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109698308 (or 109698284 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 111412042400421 its reverse (124004240214111), we get a palindrome (235416282614532).

The spelling of 111412042400421 in words is "one hundred eleven trillion, four hundred twelve billion, forty-two million, four hundred thousand, four hundred twenty-one".