1131223011102 has 24 divisors (see below), whose sum is σ = 2535499853640. Its totient is φ = 364071773520.

The previous prime is 1131223011067. The next prime is 1131223011103. The reversal of 1131223011102 is 2011103221311.

1131223011102 is a `hidden beast` number, since 11 + 312 + 230 + 1 + 110 + 2 = 666.

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 (1131223011103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083546424 + ... + 1083547467.

It is an arithmetic number, because the mean of its divisors is an integer number (105645827235).

Almost surely, 2^{1131223011102} is an apocalyptic number.

1131223011102 is an abundant number, since it is smaller than the sum of its proper divisors (1404276842538).

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

1131223011102 is a wasteful number, since it uses less digits than its factorization.

1131223011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167093928 (or 2167093925 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1131223011102 its reverse (2011103221311), we get a palindrome (3142326232413).

The spelling of 1131223011102 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-three million, eleven thousand, one hundred two".