100500100110978 has 16 divisors (see below), whose sum is σ = 207931241609280. Its totient is φ = 32344859805776.

The previous prime is 100500100110953. The next prime is 100500100111067. The reversal of 100500100110978 is 879011001005001.

It is a super-2 number, since 2×100500100110978² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288793390950 + ... + 288793391297.

It is an arithmetic number, because the mean of its divisors is an integer number (12995702600580).

Almost surely, 2^{100500100110978} is an apocalyptic number.

100500100110978 is an abundant number, since it is smaller than the sum of its proper divisors (107431141498302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100500100110978 is a wasteful number, since it uses less digits than its factorization.

100500100110978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577586782281.

The product of its (nonzero) digits is 2520, while the sum is 33.

Adding to 100500100110978 its reverse (879011001005001), we get a palindrome (979511101115979).

The spelling of 100500100110978 in words is "one hundred trillion, five hundred billion, one hundred million, one hundred ten thousand, nine hundred seventy-eight".