11001321010 has 32 divisors (see below), whose sum is σ = 21057287472. Its totient is φ = 4123883520.

The previous prime is 11001320947. The next prime is 11001321017. The reversal of 11001321010 is 1012310011.

It can be written as a sum of positive squares in 8 ways, for example, as 7874610121 + 3126710889 = 88739^2 + 55917^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11001321017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99261 + ... + 178480.

Almost surely, 2^11001321010 is an apocalyptic number.

11001321010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11001321010 is a deficient number, since it is larger than the sum of its proper divisors (10055966462).

11001321010 is a wasteful number, since it uses less digits than its factorization.

11001321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277998.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11001321010 its reverse (1012310011), we get a palindrome (12013631021).

The spelling of 11001321010 in words is "eleven billion, one million, three hundred twenty-one thousand, ten".