1113123210 has 32 divisors (see below), whose sum is σ = 2679590592. Its totient is φ = 295933440.

The previous prime is 1113123173. The next prime is 1113123217. The reversal of 1113123210 is 123213111.

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 1113123210.

It is not an unprimeable number, because it can be changed into a prime (1113123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46119 + ... + 65978.

It is an arithmetic number, because the mean of its divisors is an integer number (83737206).

Almost surely, 2^1113123210 is an apocalyptic number.

1113123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1113123210 is an abundant number, since it is smaller than the sum of its proper divisors (1566467382).

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

1113123210 is a wasteful number, since it uses less digits than its factorization.

1113123210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112438.

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

The square root of 1113123210 is about 33363.5011651955. The cubic root of 1113123210 is about 1036.3689975449.

Adding to 1113123210 its reverse (123213111), we get a palindrome (1236336321).

The spelling of 1113123210 in words is "one billion, one hundred thirteen million, one hundred twenty-three thousand, two hundred ten".