10111110999956 has 12 divisors (see below), whose sum is σ = 17784263765268. Its totient is φ = 5029892781312.

The previous prime is 10111110999919. The next prime is 10111110999967. The reversal of 10111110999956 is 65999901111101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7688885677456 + 2422225322500 = 2772884^2 + 1556350^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10111110999898 and 10111110999907.

It is a congruent number.

It is an unprimeable number.

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, 6415678781 + ... + 6415680356.

It is an arithmetic number, because the mean of its divisors is an integer number (1482021980439).

Almost surely, 2^{10111110999956} is an apocalyptic number.

It is an amenable number.

10111110999956 is a deficient number, since it is larger than the sum of its proper divisors (7673152765312).

10111110999956 is a wasteful number, since it uses less digits than its factorization.

10111110999956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831359338 (or 12831359336 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 53.

The spelling of 10111110999956 in words is "ten trillion, one hundred eleven billion, one hundred ten million, nine hundred ninety-nine thousand, nine hundred fifty-six".