11211303210 has 64 divisors (see below), whose sum is σ = 28530230400. Its totient is φ = 2811635712.

The previous prime is 11211303203. The next prime is 11211303223. The reversal of 11211303210 is 1230311211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211303210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6306 + ... + 149874.

It is an arithmetic number, because the mean of its divisors is an integer number (445784850).

Almost surely, 2^11211303210 is an apocalyptic number.

11211303210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11211303210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14265115200).

11211303210 is an abundant number, since it is smaller than the sum of its proper divisors (17318927190).

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

11211303210 is a wasteful number, since it uses less digits than its factorization.

11211303210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143735.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11211303210 its reverse (1230311211), we get a palindrome (12441614421).

The spelling of 11211303210 in words is "eleven billion, two hundred eleven million, three hundred three thousand, two hundred ten".