1234000321 has 4 divisors (see below), whose sum is σ = 1234120644. Its totient is φ = 1233880000.

The previous prime is 1234000307. The next prime is 1234000331. The reversal of 1234000321 is 1230004321.

It is a happy number.

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 270767025 + 963233296 = 16455^2 + 31036^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234000321 - 2⁵ = 1234000289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234000295 and 1234000304.

It is not an unprimeable number, because it can be changed into a prime (1234000331) 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, 43180 + ... + 65821.

It is an arithmetic number, because the mean of its divisors is an integer number (308530161).

Almost surely, 2^1234000321 is an apocalyptic number.

It is an amenable number.

1234000321 is a deficient number, since it is larger than the sum of its proper divisors (120323).

1234000321 is a wasteful number, since it uses less digits than its factorization.

1234000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120322.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1234000321 is about 35128.3407094614. The cubic root of 1234000321 is about 1072.6015598879.

Adding to 1234000321 its reverse (1230004321), we get a palindrome (2464004642).

It can be divided in two parts, 1234000 and 321, that added together give a palindrome (1234321).

The spelling of 1234000321 in words is "one billion, two hundred thirty-four million, three hundred twenty-one", and thus it is an aban number.