11211131120 has 80 divisors (see below), whose sum is σ = 29806092288. Its totient is φ = 3841685760.

The previous prime is 11211131119. The next prime is 11211131137. The reversal of 11211131120 is 2113111211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 11211131095 and 11211131104.

It is a congruent number.

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, 1265105 + ... + 1273935.

Almost surely, 2^11211131120 is an apocalyptic number.

11211131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211131120 is an abundant number, since it is smaller than the sum of its proper divisors (18594961168).

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

11211131120 is a wasteful number, since it uses less digits than its factorization.

11211131120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118 (or 11112 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11211131120 its reverse (2113111211), we get a palindrome (13324242331).

The spelling of 11211131120 in words is "eleven billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty".