111431335150553 has 16 divisors (see below), whose sum is σ = 130128231801600. Its totient is φ = 94342968035280.

The previous prime is 111431335150483. The next prime is 111431335150561. The reversal of 111431335150553 is 355051533134111.

It is a cyclic number.

It is not a de Polignac number, because 111431335150553 - 2⁴⁰ = 110331823522777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111431335150553.

It is not an unprimeable number, because it can be changed into a prime (111431335150253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4518329051 + ... + 4518353712.

It is an arithmetic number, because the mean of its divisors is an integer number (8133014487600).

Almost surely, 2^{111431335150553} is an apocalyptic number.

It is an amenable number.

111431335150553 is a deficient number, since it is larger than the sum of its proper divisors (18696896651047).

111431335150553 is a wasteful number, since it uses less digits than its factorization.

111431335150553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9036682852.

The product of its (nonzero) digits is 202500, while the sum is 41.

Adding to 111431335150553 its reverse (355051533134111), we get a palindrome (466482868284664).

The spelling of 111431335150553 in words is "one hundred eleven trillion, four hundred thirty-one billion, three hundred thirty-five million, one hundred fifty thousand, five hundred fifty-three".