11213230787 has 32 divisors (see below), whose sum is σ = 13385585664. Its totient is φ = 9277632000.

The previous prime is 11213230757. The next prime is 11213230789. The reversal of 11213230787 is 78703231211.

It is a cyclic number.

It is not a de Polignac number, because 11213230787 - 2¹⁰ = 11213229763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11213230789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805238 + ... + 819044.

It is an arithmetic number, because the mean of its divisors is an integer number (418299552).

Almost surely, 2^11213230787 is an apocalyptic number.

11213230787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11213230787 is a deficient number, since it is larger than the sum of its proper divisors (2172354877).

11213230787 is a wasteful number, since it uses less digits than its factorization.

11213230787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13979.

The product of its (nonzero) digits is 14112, while the sum is 35.

Adding to 11213230787 its reverse (78703231211), we get a palindrome (89916461998).

The spelling of 11213230787 in words is "eleven billion, two hundred thirteen million, two hundred thirty thousand, seven hundred eighty-seven".