111011911929 has 6 divisors (see below), whose sum is σ = 160350539466. Its totient is φ = 74007941280.

The previous prime is 111011911919. The next prime is 111011911943. The reversal of 111011911929 is 929119110111.

It can be written as a sum of positive squares in only one way, i.e., 93285652329 + 17726259600 = 305427^2 + 133140^2 .

It is not a de Polignac number, because 111011911929 - 2⁵ = 111011911897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111011911893 and 111011911902.

It is not an unprimeable number, because it can be changed into a prime (111011911919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6167328432 + ... + 6167328449.

It is an arithmetic number, because the mean of its divisors is an integer number (26725089911).

Almost surely, 2^111011911929 is an apocalyptic number.

It is an amenable number.

111011911929 is a deficient number, since it is larger than the sum of its proper divisors (49338627537).

111011911929 is a wasteful number, since it uses less digits than its factorization.

111011911929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334656887 (or 12334656884 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 36.

The spelling of 111011911929 in words is "one hundred eleven billion, eleven million, nine hundred eleven thousand, nine hundred twenty-nine".