1123311210 has 192 divisors, whose sum is σ = 3327270912. Its totient is φ = 237671424.

The previous prime is 1123311187. The next prime is 1123311221. The reversal of 1123311210 is 121133211.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1123311210.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5037159 + ... + 5037381.

It is an arithmetic number, because the mean of its divisors is an integer number (17329536).

Almost surely, 2^1123311210 is an apocalyptic number.

1123311210 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 1123311210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663635456).

1123311210 is an abundant number, since it is smaller than the sum of its proper divisors (2203959702).

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

1123311210 is a wasteful number, since it uses less digits than its factorization.

1123311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 340 counting only the distinct ones).

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

The square root of 1123311210 is about 33515.8352126275. The cubic root of 1123311210 is about 1039.5212324175.

Adding to 1123311210 its reverse (121133211), we get a palindrome (1244444421).

The spelling of 1123311210 in words is "one billion, one hundred twenty-three million, three hundred eleven thousand, two hundred ten".