1100100010978 has 16 divisors (see below), whose sum is σ = 1660472840376. Its totient is φ = 546619701760.

The previous prime is 1100100010931. The next prime is 1100100010979. The reversal of 1100100010978 is 8790100010011.

It can be written as a sum of positive squares in 4 ways, for example, as 900633266289 + 199466744689 = 949017^2 + 446617^2 .

It is not an unprimeable number, because it can be changed into a prime (1100100010979) 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, 2452213 + ... + 2865928.

Almost surely, 2^{1100100010978} is an apocalyptic number.

1100100010978 is a deficient number, since it is larger than the sum of its proper divisors (560372829398).

1100100010978 is a wasteful number, since it uses less digits than its factorization.

1100100010978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318789.

The product of its (nonzero) digits is 504, while the sum is 28.

Adding to 1100100010978 its reverse (8790100010011), we get a palindrome (9890200020989).

The spelling of 1100100010978 in words is "one trillion, one hundred billion, one hundred million, ten thousand, nine hundred seventy-eight".