1011111110000 has 50 divisors (see below), whose sum is σ = 2448001132632. Its totient is φ = 404444440000.

The previous prime is 1011111109997. The next prime is 1011111110011. The reversal of 1011111110000 is 111111101.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1011111110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50545556 + ... + 50565555.

Almost surely, 2^{1011111110000} is an apocalyptic number.

1011111110000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011111110000 is an abundant number, since it is smaller than the sum of its proper divisors (1436890022632).

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

1011111110000 is an equidigital number, since it uses as much as digits as its factorization.

1011111110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101111139 (or 101111118 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1011111110000 its reverse (111111101), we get a palindrome (1011222221101).

The spelling of 1011111110000 in words is "one trillion, eleven billion, one hundred eleven million, one hundred ten thousand".