111340420442421 has 48 divisors (see below), whose sum is σ = 160742934644544. Its totient is φ = 68513819785216.

The previous prime is 111340420442413. The next prime is 111340420442443. The reversal of 111340420442421 is 124244024043111.

It is not a de Polignac number, because 111340420442421 - 2³ = 111340420442413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111340420442221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109454470 + ... + 110467016.

It is an arithmetic number, because the mean of its divisors is an integer number (3348811138428).

Almost surely, 2^{111340420442421} is an apocalyptic number.

It is an amenable number.

111340420442421 is a deficient number, since it is larger than the sum of its proper divisors (49402514202123).

111340420442421 is a wasteful number, since it uses less digits than its factorization.

111340420442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015030 (or 1015013 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

Adding to 111340420442421 its reverse (124244024043111), we get a palindrome (235584444485532).

The spelling of 111340420442421 in words is "one hundred eleven trillion, three hundred forty billion, four hundred twenty million, four hundred forty-two thousand, four hundred twenty-one".