11130054140 has 12 divisors (see below), whose sum is σ = 23373113736. Its totient is φ = 4452021648.

The previous prime is 11130054121. The next prime is 11130054157. The reversal of 11130054140 is 4145003111.

It is a happy number.

It is a super-2 number, since 2×11130054140² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 556502707 = 11130054140 / (1 + 1 + 1 + 3 + 0 + 0 + 5 + 4 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278251334 + ... + 278251373.

It is an arithmetic number, because the mean of its divisors is an integer number (1947759478).

Almost surely, 2^11130054140 is an apocalyptic number.

11130054140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11130054140 is an abundant number, since it is smaller than the sum of its proper divisors (12243059596).

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

11130054140 is a wasteful number, since it uses less digits than its factorization.

11130054140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556502716 (or 556502714 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 11130054140 its reverse (4145003111), we get a palindrome (15275057251).

The spelling of 11130054140 in words is "eleven billion, one hundred thirty million, fifty-four thousand, one hundred forty".