1321013035 has 8 divisors (see below), whose sum is σ = 1628059536. Its totient is φ = 1028247840.

The previous prime is 1321012997. The next prime is 1321013041. The reversal of 1321013035 is 5303101231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321013035 - 2¹⁹ = 1320488747 is a prime.

It is a super-2 number, since 2×1321013035² = 3490150877279822450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3570121 + ... + 3570490.

It is an arithmetic number, because the mean of its divisors is an integer number (203507442).

Almost surely, 2^1321013035 is an apocalyptic number.

1321013035 is a deficient number, since it is larger than the sum of its proper divisors (307046501).

1321013035 is an equidigital number, since it uses as much as digits as its factorization.

1321013035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7140653.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1321013035 is about 36345.7430107021. The cubic root of 1321013035 is about 1097.2418599924.

Adding to 1321013035 its reverse (5303101231), we get a palindrome (6624114266).

The spelling of 1321013035 in words is "one billion, three hundred twenty-one million, thirteen thousand, thirty-five".