11121759973 has 6 divisors (see below), whose sum is σ = 11139358034. Its totient is φ = 11104170336.

The previous prime is 11121759967. The next prime is 11121760003. The reversal of 11121759973 is 37995712111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 252237924 + 10869522049 = 15882^2 + 104257^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11121759973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121759073) 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, 2899665 + ... + 2903497.

Almost surely, 2^11121759973 is an apocalyptic number.

It is an amenable number.

11121759973 is a deficient number, since it is larger than the sum of its proper divisors (17598061).

11121759973 is an frugal number, since it uses more digits than its factorization.

11121759973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8423 (or 4590 counting only the distinct ones).

The product of its digits is 119070, while the sum is 46.

The spelling of 11121759973 in words is "eleven billion, one hundred twenty-one million, seven hundred fifty-nine thousand, nine hundred seventy-three".