11030305340 has 12 divisors (see below), whose sum is σ = 23163641256. Its totient is φ = 4412122128.

The previous prime is 11030305301. The next prime is 11030305343. The reversal of 11030305340 is 4350303011.

It is a happy number.

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: 551515267 = 11030305340 / (1 + 1 + 0 + 3 + 0 + 3 + 0 + 5 + 3 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030305343) 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, 275757614 + ... + 275757653.

It is an arithmetic number, because the mean of its divisors is an integer number (1930303438).

Almost surely, 2^11030305340 is an apocalyptic number.

11030305340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11030305340 is an abundant number, since it is smaller than the sum of its proper divisors (12133335916).

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

11030305340 is a wasteful number, since it uses less digits than its factorization.

11030305340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551515276 (or 551515274 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 11030305340 its reverse (4350303011), we get a palindrome (15380608351).

The spelling of 11030305340 in words is "eleven billion, thirty million, three hundred five thousand, three hundred forty".