11130082780 has 12 divisors (see below), whose sum is σ = 23373173880. Its totient is φ = 4452033104.

The previous prime is 11130082721. The next prime is 11130082787. The reversal of 11130082780 is 8728003111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130082787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278252050 + ... + 278252089.

It is an arithmetic number, because the mean of its divisors is an integer number (1947764490).

Almost surely, 2^11130082780 is an apocalyptic number.

11130082780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11130082780 is an abundant number, since it is smaller than the sum of its proper divisors (12243091100).

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

11130082780 is a wasteful number, since it uses less digits than its factorization.

11130082780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556504148 (or 556504146 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 11130082780 its reverse (8728003111), we get a palindrome (19858085891).

The spelling of 11130082780 in words is "eleven billion, one hundred thirty million, eighty-two thousand, seven hundred eighty".