240021402303 has 4 divisors (see below), whose sum is σ = 320028536408. Its totient is φ = 160014268200.

The previous prime is 240021402293. The next prime is 240021402377. The reversal of 240021402303 is 303204120042.

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

It is not a de Polignac number, because 240021402303 - 2⁹ = 240021401791 is a prime.

It is a super-2 number, since 2×240021402303² (a number of 24 digits) contains 22 as substring.

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 240021402303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240021442303) 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, 40003567048 + ... + 40003567053.

It is an arithmetic number, because the mean of its divisors is an integer number (80007134102).

Almost surely, 2^240021402303 is an apocalyptic number.

240021402303 is a deficient number, since it is larger than the sum of its proper divisors (80007134105).

240021402303 is an equidigital number, since it uses as much as digits as its factorization.

240021402303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80007134104.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 240021402303 its reverse (303204120042), we get a palindrome (543225522345).

The spelling of 240021402303 in words is "two hundred forty billion, twenty-one million, four hundred two thousand, three hundred three".