111040430220421 has 32 divisors (see below), whose sum is σ = 120905512987392. Its totient is φ = 101368521999360.

The previous prime is 111040430220409. The next prime is 111040430220451. The reversal of 111040430220421 is 124022034040111.

It is a cyclic number.

It is not a de Polignac number, because 111040430220421 - 2¹⁵ = 111040430187653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111040430220451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2960191056 + ... + 2960228566.

It is an arithmetic number, because the mean of its divisors is an integer number (3778297280856).

Almost surely, 2^{111040430220421} is an apocalyptic number.

It is an amenable number.

111040430220421 is a deficient number, since it is larger than the sum of its proper divisors (9865082766971).

111040430220421 is a wasteful number, since it uses less digits than its factorization.

111040430220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42013.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111040430220421 its reverse (124022034040111), we get a palindrome (235062464260532).

The spelling of 111040430220421 in words is "one hundred eleven trillion, forty billion, four hundred thirty million, two hundred twenty thousand, four hundred twenty-one".