111110999999954 has 4 divisors (see below), whose sum is σ = 166666499999934. Its totient is φ = 55555499999976.

The previous prime is 111110999999953. The next prime is 111110999999977. The reversal of 111110999999954 is 459999999011111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 102978961101025 + 8132038898929 = 10147855^2 + 2851673^2 .

It is not an unprimeable number, because it can be changed into a prime (111110999999953) by changing a digit.

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 as a sum of consecutive naturals, namely, 27777749999987 + ... + 27777749999990.

Almost surely, 2^{111110999999954} is an apocalyptic number.

111110999999954 is a deficient number, since it is larger than the sum of its proper divisors (55555499999980).

111110999999954 is an equidigital number, since it uses as much as digits as its factorization.

111110999999954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55555499999979.

The product of its (nonzero) digits is 95659380, while the sum is 77.

The spelling of 111110999999954 in words is "one hundred eleven trillion, one hundred ten billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred fifty-four".