111111110999956 has 12 divisors (see below), whose sum is σ = 204678362368480. Its totient is φ = 52631578894680.

The previous prime is 111111110999891. The next prime is 111111111000023. The reversal of 111111110999956 is 659999011111111.

It is a junction number, because it is equal to n+sod(n) for n = 111111110999897 and 111111110999906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730994151240 + ... + 730994151391.

Almost surely, 2^{111111110999956} is an apocalyptic number.

It is an amenable number.

111111110999956 is a deficient number, since it is larger than the sum of its proper divisors (93567251368524).

111111110999956 is a wasteful number, since it uses less digits than its factorization.

111111110999956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461988302654 (or 1461988302652 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 55.

The spelling of 111111110999956 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred ten million, nine hundred ninety-nine thousand, nine hundred fifty-six".