11100434380 has 48 divisors (see below), whose sum is σ = 27361083456. Its totient is φ = 3703000320.

The previous prime is 11100434377. The next prime is 11100434381. The reversal of 11100434380 is 8343400111.

It is not an unprimeable number, because it can be changed into a prime (11100434381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066291 + ... + 1076650.

It is an arithmetic number, because the mean of its divisors is an integer number (570022572).

Almost surely, 2^11100434380 is an apocalyptic number.

11100434380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11100434380 is an abundant number, since it is smaller than the sum of its proper divisors (16260649076).

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

11100434380 is a wasteful number, since it uses less digits than its factorization.

11100434380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142994 (or 2142992 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 11100434380 its reverse (8343400111), we get a palindrome (19443834491).

The spelling of 11100434380 in words is "eleven billion, one hundred million, four hundred thirty-four thousand, three hundred eighty".