11123311123210 has 64 divisors (see below), whose sum is σ = 23555860159104. Its totient is φ = 3728372256000.

The previous prime is 11123311123189. The next prime is 11123311123271. The reversal of 11123311123210 is 1232111332111.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 4545744 + ... + 6550603.

It is an arithmetic number, because the mean of its divisors is an integer number (368060314986).

Almost surely, 2^{11123311123210} is an apocalyptic number.

11123311123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11123311123210 is an abundant number, since it is smaller than the sum of its proper divisors (12432549035894).

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

11123311123210 is a wasteful number, since it uses less digits than its factorization.

11123311123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11097079.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 11123311123210 its reverse (1232111332111), we get a palindrome (12355422455321).

The spelling of 11123311123210 in words is "eleven trillion, one hundred twenty-three billion, three hundred eleven million, one hundred twenty-three thousand, two hundred ten".