1232130720 has 48 divisors (see below), whose sum is σ = 3881213280. Its totient is φ = 328568064.

The previous prime is 1232130671. The next prime is 1232130727. The reversal of 1232130720 is 270312321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1232130720² = 3036292222335436800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232130727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282990 + ... + 1283949.

It is an arithmetic number, because the mean of its divisors is an integer number (80858610).

Almost surely, 2^1232130720 is an apocalyptic number.

1232130720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232130720 is an abundant number, since it is smaller than the sum of its proper divisors (2649082560).

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

1232130720 is a wasteful number, since it uses less digits than its factorization.

1232130720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566957 (or 2566949 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1232130720 is about 35101.7196159960. The cubic root of 1232130720 is about 1072.0595960779.

The spelling of 1232130720 in words is "one billion, two hundred thirty-two million, one hundred thirty thousand, seven hundred twenty".