111045435321 has 4 divisors (see below), whose sum is σ = 148060580432. Its totient is φ = 74030290212.

The previous prime is 111045435311. The next prime is 111045435323. The reversal of 111045435321 is 123534540111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123534540111 = 3 ⋅41178180037.

It is not a de Polignac number, because 111045435321 - 2¹⁴ = 111045418937 is a prime.

It is a super-3 number, since 3×111045435321³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111045435323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18507572551 + ... + 18507572556.

It is an arithmetic number, because the mean of its divisors is an integer number (37015145108).

Almost surely, 2^111045435321 is an apocalyptic number.

It is an amenable number.

111045435321 is a deficient number, since it is larger than the sum of its proper divisors (37015145111).

111045435321 is an equidigital number, since it uses as much as digits as its factorization.

111045435321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37015145110.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 111045435321 its reverse (123534540111), we get a palindrome (234579975432).

The spelling of 111045435321 in words is "one hundred eleven billion, forty-five million, four hundred thirty-five thousand, three hundred twenty-one".