11313211121210 has 32 divisors (see below), whose sum is σ = 21567712335120. Its totient is φ = 4257893635072.

The previous prime is 11313211121209. The next prime is 11313211121287. The reversal of 11313211121210 is 1212111231311.

It can be written as a sum of positive squares in 8 ways, for example, as 743904525001 + 10569306596209 = 862499^2 + 3251047^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8749865 + ... + 9959244.

Almost surely, 2^{11313211121210} is an apocalyptic number.

11313211121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11313211121210 is a deficient number, since it is larger than the sum of its proper divisors (10254501213910).

11313211121210 is a wasteful number, since it uses less digits than its factorization.

11313211121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18712690.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11313211121210 its reverse (1212111231311), we get a palindrome (12525322352521).

The spelling of 11313211121210 in words is "eleven trillion, three hundred thirteen billion, two hundred eleven million, one hundred twenty-one thousand, two hundred ten".