11130206540 has 12 divisors (see below), whose sum is σ = 23373433776. Its totient is φ = 4452082608.

The previous prime is 11130206537. The next prime is 11130206557. The reversal of 11130206540 is 4560203111.

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, 278255144 + ... + 278255183.

It is an arithmetic number, because the mean of its divisors is an integer number (1947786148).

Almost surely, 2^11130206540 is an apocalyptic number.

11130206540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11130206540 is an abundant number, since it is smaller than the sum of its proper divisors (12243227236).

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

11130206540 is a wasteful number, since it uses less digits than its factorization.

11130206540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556510336 (or 556510334 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11130206540 its reverse (4560203111), we get a palindrome (15690409651).

The spelling of 11130206540 in words is "eleven billion, one hundred thirty million, two hundred six thousand, five hundred forty".