11031221330 has 16 divisors (see below), whose sum is σ = 19872376920. Its totient is φ = 4408893312.

The previous prime is 11031221321. The next prime is 11031221387. The reversal of 11031221330 is 3312213011.

It can be written as a sum of positive squares in 4 ways, for example, as 9496697401 + 1534523929 = 97451^2 + 39173^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11031221299 and 11031221308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436499 + ... + 461078.

Almost surely, 2^11031221330 is an apocalyptic number.

11031221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11031221330 is a deficient number, since it is larger than the sum of its proper divisors (8841155590).

11031221330 is a wasteful number, since it uses less digits than its factorization.

11031221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898813.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11031221330 its reverse (3312213011), we get a palindrome (14343434341).

The spelling of 11031221330 in words is "eleven billion, thirty-one million, two hundred twenty-one thousand, three hundred thirty".