1123211313210 has 64 divisors (see below), whose sum is σ = 3081040042752. Its totient is φ = 256714692096.

The previous prime is 1123211313199. The next prime is 1123211313227. The reversal of 1123211313210 is 123131123211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

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, 2694574 + ... + 3083366.

It is an arithmetic number, because the mean of its divisors is an integer number (48141250668).

Almost surely, 2^{1123211313210} is an apocalyptic number.

1123211313210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1123211313210 is an abundant number, since it is smaller than the sum of its proper divisors (1957828729542).

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

1123211313210 is a wasteful number, since it uses less digits than its factorization.

1123211313210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402567.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1123211313210 its reverse (123131123211), we get a palindrome (1246342436421).

The spelling of 1123211313210 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, three hundred thirteen thousand, two hundred ten".