111201943129 has 4 divisors (see below), whose sum is σ = 111442120576. Its totient is φ = 110961765684.

The previous prime is 111201943063. The next prime is 111201943147. The reversal of 111201943129 is 921349102111.

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.

It is a cyclic number.

It is not a de Polignac number, because 111201943129 - 2⁹ = 111201942617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111201943094 and 111201943103.

It is not an unprimeable number, because it can be changed into a prime (111201943429) 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, 120088029 + ... + 120088954.

It is an arithmetic number, because the mean of its divisors is an integer number (27860530144).

Almost surely, 2^111201943129 is an apocalyptic number.

It is an amenable number.

111201943129 is a deficient number, since it is larger than the sum of its proper divisors (240177447).

111201943129 is an equidigital number, since it uses as much as digits as its factorization.

111201943129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240177446.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 111201943129 in words is "one hundred eleven billion, two hundred one million, nine hundred forty-three thousand, one hundred twenty-nine".