120440402323 has 2 divisors, whose sum is σ = 120440402324. Its totient is φ = 120440402322.

The previous prime is 120440402321. The next prime is 120440402347. The reversal of 120440402323 is 323204044021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120440402323 - 2¹ = 120440402321 is a prime.

It is a super-3 number, since 3×120440402323³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 120440402321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (120440402321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60220201161 + 60220201162.

It is an arithmetic number, because the mean of its divisors is an integer number (60220201162).

Almost surely, 2^120440402323 is an apocalyptic number.

120440402323 is a deficient number, since it is larger than the sum of its proper divisors (1).

120440402323 is an equidigital number, since it uses as much as digits as its factorization.

120440402323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 120440402323 its reverse (323204044021), we get a palindrome (443644446344).

The spelling of 120440402323 in words is "one hundred twenty billion, four hundred forty million, four hundred two thousand, three hundred twenty-three".