1301220032 has 112 divisors (see below), whose sum is σ = 3096963072. Its totient is φ = 530365440.

The previous prime is 1301220031. The next prime is 1301220047. The reversal of 1301220032 is 2300221031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1301219989 and 1301220016.

It is not an unprimeable number, because it can be changed into a prime (1301220031) 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, 3018857 + ... + 3019287.

It is an arithmetic number, because the mean of its divisors is an integer number (27651456).

Almost surely, 2^1301220032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1301220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1548481536).

1301220032 is an abundant number, since it is smaller than the sum of its proper divisors (1795743040).

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

1301220032 is a wasteful number, since it uses less digits than its factorization.

1301220032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1301220032 is about 36072.4275867317. The cubic root of 1301220032 is about 1091.7341953475.

Adding to 1301220032 its reverse (2300221031), we get a palindrome (3601441063).

Subtracting 1301220032 from its reverse (2300221031), we obtain a palindrome (999000999).

The spelling of 1301220032 in words is "one billion, three hundred one million, two hundred twenty thousand, thirty-two".