20243320402 has 8 divisors (see below), whose sum is σ = 31105590012. Its totient is φ = 9874790400.

The previous prime is 20243320387. The next prime is 20243320411. The reversal of 20243320402 is 20402334202.

It can be written as a sum of positive squares in 2 ways, for example, as 20243313841 + 6561 = 142279^2 + 81^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123434799 + ... + 123434962.

Almost surely, 2^20243320402 is an apocalyptic number.

20243320402 is a deficient number, since it is larger than the sum of its proper divisors (10862269610).

20243320402 is a wasteful number, since it uses less digits than its factorization.

20243320402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246869804.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20243320402 its reverse (20402334202), we get a palindrome (40645654604).

The spelling of 20243320402 in words is "twenty billion, two hundred forty-three million, three hundred twenty thousand, four hundred two".