111383834129 has 4 divisors (see below), whose sum is σ = 112793756160. Its totient is φ = 109973912100.

The previous prime is 111383834123. The next prime is 111383834137. The reversal of 111383834129 is 921438383111.

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: 921438383111 = 1097 ⋅839962063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111383834129 is a prime.

It is a super-3 number, since 3×111383834129³ (a number of 34 digits) contains 333 as substring.

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 111383834129.

It is not an unprimeable number, because it can be changed into a prime (111383834123) 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, 704960897 + ... + 704961054.

It is an arithmetic number, because the mean of its divisors is an integer number (28198439040).

Almost surely, 2^111383834129 is an apocalyptic number.

It is an amenable number.

111383834129 is a deficient number, since it is larger than the sum of its proper divisors (1409922031).

111383834129 is an equidigital number, since it uses as much as digits as its factorization.

111383834129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409922030.

The product of its digits is 124416, while the sum is 44.

The spelling of 111383834129 in words is "one hundred eleven billion, three hundred eighty-three million, eight hundred thirty-four thousand, one hundred twenty-nine".