1232118720 has 252 divisors, whose sum is σ = 4930453944. Its totient is φ = 281594880.

The previous prime is 1232118683. The next prime is 1232118721. The reversal of 1232118720 is 278112321.

It is a tau number, because it is divible by the number of its divisors (252).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232118721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 136755 + ... + 145485.

Almost surely, 2^1232118720 is an apocalyptic number.

1232118720 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 1232118720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465226972).

1232118720 is an abundant number, since it is smaller than the sum of its proper divisors (3698335224).

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

1232118720 is a wasteful number, since it uses less digits than its factorization.

1232118720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768 (or 8748 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1232118720 is about 35101.5486837832. The cubic root of 1232118720 is about 1072.0561157229.

The spelling of 1232118720 in words is "one billion, two hundred thirty-two million, one hundred eighteen thousand, seven hundred twenty".