1000111121120 has 24 divisors (see below), whose sum is σ = 2362762524024. Its totient is φ = 400044448384.

The previous prime is 1000111121111. The next prime is 1000111121123. The reversal of 1000111121120 is 211211110001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3125347094 + ... + 3125347413.

It is an arithmetic number, because the mean of its divisors is an integer number (98448438501).

Almost surely, 2^{1000111121120} is an apocalyptic number.

1000111121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000111121120 is an abundant number, since it is smaller than the sum of its proper divisors (1362651402904).

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

1000111121120 is an equidigital number, since it uses as much as digits as its factorization.

1000111121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250694522 (or 6250694514 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1000111121120 its reverse (211211110001), we get a palindrome (1211322231121).

The spelling of 1000111121120 in words is "one trillion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty".