1233011240 has 64 divisors (see below), whose sum is σ = 2845877760. Its totient is φ = 480533760.

The previous prime is 1233011237. The next prime is 1233011257. The reversal of 1233011240 is 421103321.

It is an unprimeable number.

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, 1043450 + ... + 1044630.

It is an arithmetic number, because the mean of its divisors is an integer number (44466840).

Almost surely, 2^1233011240 is an apocalyptic number.

1233011240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1233011240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422938880).

1233011240 is an abundant number, since it is smaller than the sum of its proper divisors (1612866520).

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

1233011240 is a wasteful number, since it uses less digits than its factorization.

1233011240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1233011240 is about 35114.2597814620. The cubic root of 1233011240 is about 1072.3149112880.

Adding to 1233011240 its reverse (421103321), we get a palindrome (1654114561).

The spelling of 1233011240 in words is "one billion, two hundred thirty-three million, eleven thousand, two hundred forty".