1111012120424 has 8 divisors (see below), whose sum is σ = 2083147725810. Its totient is φ = 555506060208.

The previous prime is 1111012120399. The next prime is 1111012120453. The reversal of 1111012120424 is 4240212101111.

It can be written as a sum of positive squares in only one way, i.e., 999436079524 + 111576040900 = 999718^2 + 334030^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1111012120396 and 1111012120405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69438257519 + ... + 69438257534.

Almost surely, 2^{1111012120424} is an apocalyptic number.

It is an amenable number.

1111012120424 is a deficient number, since it is larger than the sum of its proper divisors (972135605386).

1111012120424 is a wasteful number, since it uses less digits than its factorization.

1111012120424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138876515059 (or 138876515055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1111012120424 its reverse (4240212101111), we get a palindrome (5351224221535).

The spelling of 1111012120424 in words is "one trillion, one hundred eleven billion, twelve million, one hundred twenty thousand, four hundred twenty-four".