111554114431 has 4 divisors (see below), whose sum is σ = 111558400200. Its totient is φ = 111549828664.

The previous prime is 111554114387. The next prime is 111554114527. The reversal of 111554114431 is 134411455111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111554114431 - 2⁹ = 111554113919 is a prime.

It is a super-4 number, since 4×111554114431⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111554114393 and 111554114402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111554117431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2103601 + ... + 2155978.

It is an arithmetic number, because the mean of its divisors is an integer number (27889600050).

Almost surely, 2^111554114431 is an apocalyptic number.

111554114431 is a deficient number, since it is larger than the sum of its proper divisors (4285769).

111554114431 is an equidigital number, since it uses as much as digits as its factorization.

111554114431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285768.

The product of its digits is 4800, while the sum is 31.

Adding to 111554114431 its reverse (134411455111), we get a palindrome (245965569542).

The spelling of 111554114431 in words is "one hundred eleven billion, five hundred fifty-four million, one hundred fourteen thousand, four hundred thirty-one".