1113311121012 has 36 divisors (see below), whose sum is σ = 2814736484196. Its totient is φ = 371033372160.

The previous prime is 1113311121011. The next prime is 1113311121031. The reversal of 1113311121012 is 2101211133111.

1113311121012 is a `hidden beast` number, since 111 + 331 + 1 + 1 + 210 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 684699981156 + 428611139856 = 827466^2 + 654684^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1113311121012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113311121011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2737863 + ... + 3118094.

It is an arithmetic number, because the mean of its divisors is an integer number (78187124561).

Almost surely, 2^{1113311121012} is an apocalyptic number.

1113311121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1113311121012 is an abundant number, since it is smaller than the sum of its proper divisors (1701425363184).

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

1113311121012 is a wasteful number, since it uses less digits than its factorization.

1113311121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5861248 (or 5861243 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1113311121012 its reverse (2101211133111), we get a palindrome (3214522254123).

The spelling of 1113311121012 in words is "one trillion, one hundred thirteen billion, three hundred eleven million, one hundred twenty-one thousand, twelve".