1301232320 has 112 divisors (see below), whose sum is σ = 3223260000. Its totient is φ = 499752960.

The previous prime is 1301232313. The next prime is 1301232323. The reversal of 1301232320 is 232321031.

It is a super-2 number, since 2×1301232320² = 3386411101225164800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1301232323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2607431 + ... + 2607929.

Almost surely, 2^1301232320 is an apocalyptic number.

1301232320 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 1301232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611630000).

1301232320 is an abundant number, since it is smaller than the sum of its proper divisors (1922027680).

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

1301232320 is a wasteful number, since it uses less digits than its factorization.

1301232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1301232320 is about 36072.5979103252. The cubic root of 1301232320 is about 1091.7376319140.

Adding to 1301232320 its reverse (232321031), we get a palindrome (1533553351).

The spelling of 1301232320 in words is "one billion, three hundred one million, two hundred thirty-two thousand, three hundred twenty".