1011001100078 has 16 divisors (see below), whose sum is σ = 1519443436896. Its totient is φ = 504520763040.

The previous prime is 1011001100077. The next prime is 1011001100111. The reversal of 1011001100078 is 8700011001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011001100077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314868 + ... + 2716728.

It is an arithmetic number, because the mean of its divisors is an integer number (94965214806).

Almost surely, 2^{1011001100078} is an apocalyptic number.

1011001100078 is a deficient number, since it is larger than the sum of its proper divisors (508442336818).

1011001100078 is a wasteful number, since it uses less digits than its factorization.

1011001100078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404299.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 1011001100078 its reverse (8700011001101), we get a palindrome (9711012101179).

The spelling of 1011001100078 in words is "one trillion, eleven billion, one million, one hundred thousand, seventy-eight".