1300001022 has 32 divisors (see below), whose sum is σ = 2959356960. Its totient is φ = 422763840.

The previous prime is 1300000991. The next prime is 1300001039. The reversal of 1300001022 is 2201000031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1300000995 and 1300001013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291373 + ... + 295800.

It is an arithmetic number, because the mean of its divisors is an integer number (92479905).

Almost surely, 2^1300001022 is an apocalyptic number.

1300001022 is an abundant number, since it is smaller than the sum of its proper divisors (1659355938).

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

1300001022 is a wasteful number, since it uses less digits than its factorization.

1300001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587225 (or 587219 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1300001022 is about 36055.5269272271. The cubic root of 1300001022 is about 1091.3931690619.

Adding to 1300001022 its reverse (2201000031), we get a palindrome (3501001053).

Subtracting 1300001022 from its reverse (2201000031), we obtain a palindrome (900999009).

The spelling of 1300001022 in words is "one billion, three hundred million, one thousand, twenty-two".