20302240353 has 8 divisors (see below), whose sum is σ = 27078213888. Its totient is φ = 13530546864.

The previous prime is 20302240339. The next prime is 20302240391. The reversal of 20302240353 is 35304220302.

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

It is not a de Polignac number, because 20302240353 - 2¹⁶ = 20302174817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20302240333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058926 + ... + 1077927.

It is an arithmetic number, because the mean of its divisors is an integer number (3384776736).

Almost surely, 2^20302240353 is an apocalyptic number.

It is an amenable number.

20302240353 is a deficient number, since it is larger than the sum of its proper divisors (6775973535).

20302240353 is a wasteful number, since it uses less digits than its factorization.

20302240353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140023.

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 20302240353 its reverse (35304220302), we get a palindrome (55606460655).

The spelling of 20302240353 in words is "twenty billion, three hundred two million, two hundred forty thousand, three hundred fifty-three".