1234001321 has 8 divisors (see below), whose sum is σ = 1493245440. Its totient is φ = 995496768.

The previous prime is 1234001297. The next prime is 1234001323. The reversal of 1234001321 is 1231004321.

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

It is not a de Polignac number, because 1234001321 - 2¹⁰ = 1234000297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1234001321.

It is not an unprimeable number, because it can be changed into a prime (1234001323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5184761 + ... + 5184998.

It is an arithmetic number, because the mean of its divisors is an integer number (186655680).

Almost surely, 2^1234001321 is an apocalyptic number.

It is an amenable number.

1234001321 is a deficient number, since it is larger than the sum of its proper divisors (259244119).

1234001321 is a wasteful number, since it uses less digits than its factorization.

1234001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10369783.

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

The square root of 1234001321 is about 35128.3549429802. The cubic root of 1234001321 is about 1072.6018496234.

Adding to 1234001321 its reverse (1231004321), we get a palindrome (2465005642).

The spelling of 1234001321 in words is "one billion, two hundred thirty-four million, one thousand, three hundred twenty-one".