111980553929 has 4 divisors (see below), whose sum is σ = 112066232784. Its totient is φ = 111894875076.

The previous prime is 111980553911. The next prime is 111980553961. The reversal of 111980553929 is 929355089111.

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 111980553929 - 2⁸ = 111980553673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111980553329) 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, 42837467 + ... + 42840080.

It is an arithmetic number, because the mean of its divisors is an integer number (28016558196).

Almost surely, 2^111980553929 is an apocalyptic number.

It is an amenable number.

111980553929 is a deficient number, since it is larger than the sum of its proper divisors (85678855).

111980553929 is an equidigital number, since it uses as much as digits as its factorization.

111980553929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85678854.

The product of its (nonzero) digits is 874800, while the sum is 53.

The spelling of 111980553929 in words is "one hundred eleven billion, nine hundred eighty million, five hundred fifty-three thousand, nine hundred twenty-nine".