1111012120408 has 16 divisors (see below), whose sum is σ = 2083428925560. Its totient is φ = 555431073600.

The previous prime is 1111012120399. The next prime is 1111012120453. The reversal of 1111012120408 is 8040212101111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9310333 + ... + 9428908.

Almost surely, 2^{1111012120408} is an apocalyptic number.

It is an amenable number.

1111012120408 is a deficient number, since it is larger than the sum of its proper divisors (972416805152).

1111012120408 is a wasteful number, since it uses less digits than its factorization.

1111012120408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18746658 (or 18746654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 22.

Adding to 1111012120408 its reverse (8040212101111), we get a palindrome (9151224221519).

The spelling of 1111012120408 in words is "one trillion, one hundred eleven billion, twelve million, one hundred twenty thousand, four hundred eight".