1011109999949 has 4 divisors (see below), whose sum is σ = 1155554285664. Its totient is φ = 866665714236.

The previous prime is 1011109999937. The next prime is 1011109999973. The reversal of 1011109999949 is 9499999011101.

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 not a de Polignac number, because 1011109999949 - 2³² = 1006815032653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011109999891 and 1011109999900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011109999349) 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 in 3 ways as a sum of consecutive naturals, for example, 72222142847 + ... + 72222142860.

It is an arithmetic number, because the mean of its divisors is an integer number (288888571416).

Almost surely, 2^{1011109999949} is an apocalyptic number.

It is an amenable number.

1011109999949 is a deficient number, since it is larger than the sum of its proper divisors (144444285715).

1011109999949 is an equidigital number, since it uses as much as digits as its factorization.

1011109999949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144444285714.

The product of its (nonzero) digits is 2125764, while the sum is 62.

The spelling of 1011109999949 in words is "one trillion, eleven billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".