1301320026 has 32 divisors (see below), whose sum is σ = 2894270400. Its totient is φ = 433406160.

The previous prime is 1301320003. The next prime is 1301320037. The reversal of 1301320026 is 6200231031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1301319990 and 1301320008.

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, 58416 + ... + 77556.

It is an arithmetic number, because the mean of its divisors is an integer number (90445950).

Almost surely, 2^1301320026 is an apocalyptic number.

1301320026 is an abundant number, since it is smaller than the sum of its proper divisors (1592950374).

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

1301320026 is a wasteful number, since it uses less digits than its factorization.

1301320026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20411 (or 20405 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1301320026 is about 36073.8135771643. The cubic root of 1301320026 is about 1091.7621598910.

Adding to 1301320026 its reverse (6200231031), we get a palindrome (7501551057).

The spelling of 1301320026 in words is "one billion, three hundred one million, three hundred twenty thousand, twenty-six".