1121013111012 has 48 divisors (see below), whose sum is σ = 2642865950592. Its totient is φ = 369790387200.

The previous prime is 1121013110983. The next prime is 1121013111059. The reversal of 1121013111012 is 2101113101211.

It is a junction number, because it is equal to n+sod(n) for n = 1121013110982 and 1121013111000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19644273 + ... + 19701255.

It is an arithmetic number, because the mean of its divisors is an integer number (55059707304).

Almost surely, 2^{1121013111012} is an apocalyptic number.

1121013111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121013111012 is an abundant number, since it is smaller than the sum of its proper divisors (1521852839580).

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

1121013111012 is a wasteful number, since it uses less digits than its factorization.

1121013111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73988 (or 73986 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1121013111012 its reverse (2101113101211), we get a palindrome (3222126212223).

The spelling of 1121013111012 in words is "one trillion, one hundred twenty-one billion, thirteen million, one hundred eleven thousand, twelve".