120031000321 has 4 divisors (see below), whose sum is σ = 121268433412. Its totient is φ = 118793567232.

The previous prime is 120031000307. The next prime is 120031000433. The reversal of 120031000321 is 123000130021.

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 99957777921 + 20073222400 = 316161^2 + 141680^2 .

It is a cyclic number.

It is not a de Polignac number, because 120031000321 - 2¹¹ = 120030998273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120031000301) 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, 618716400 + ... + 618716593.

It is an arithmetic number, because the mean of its divisors is an integer number (30317108353).

Almost surely, 2^120031000321 is an apocalyptic number.

It is an amenable number.

120031000321 is a deficient number, since it is larger than the sum of its proper divisors (1237433091).

120031000321 is an equidigital number, since it uses as much as digits as its factorization.

120031000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237433090.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 120031000321 its reverse (123000130021), we get a palindrome (243031130342).

The spelling of 120031000321 in words is "one hundred twenty billion, thirty-one million, three hundred twenty-one", and thus it is an aban number.