1012034321 has 4 divisors (see below), whose sum is σ = 1013189172. Its totient is φ = 1010879472.

The previous prime is 1012034279. The next prime is 1012034329. The reversal of 1012034321 is 1234302101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 754271296 + 257763025 = 27464^2 + 16055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012034321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012034321.

It is not an unprimeable number, because it can be changed into a prime (1012034329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576110 + ... + 577863.

It is an arithmetic number, because the mean of its divisors is an integer number (253297293).

Almost surely, 2^1012034321 is an apocalyptic number.

It is an amenable number.

1012034321 is a deficient number, since it is larger than the sum of its proper divisors (1154851).

1012034321 is an equidigital number, since it uses as much as digits as its factorization.

1012034321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154850.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1012034321 is about 31812.4868722959. The cubic root of 1012034321 is about 1003.9954554087.

Adding to 1012034321 its reverse (1234302101), we get a palindrome (2246336422).

The spelling of 1012034321 in words is "one billion, twelve million, thirty-four thousand, three hundred twenty-one".