20430012220433 has 16 divisors (see below), whose sum is σ = 20649227783184. Its totient is φ = 20211985946880.

The previous prime is 20430012220403. The next prime is 20430012220439. The reversal of 20430012220433 is 33402221003402.

It can be written as a sum of positive squares in 8 ways, for example, as 1494085739584 + 18935926480849 = 1222328^2 + 4351543^2 .

It is a cyclic number.

It is not a de Polignac number, because 20430012220433 - 2²⁸ = 20429743784977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20430012220439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460559291 + ... + 460603647.

It is an arithmetic number, because the mean of its divisors is an integer number (1290576736449).

Almost surely, 2^{20430012220433} is an apocalyptic number.

It is an amenable number.

20430012220433 is a deficient number, since it is larger than the sum of its proper divisors (219215562751).

20430012220433 is a wasteful number, since it uses less digits than its factorization.

20430012220433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57652.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20430012220433 its reverse (33402221003402), we get a palindrome (53832233223835).

The spelling of 20430012220433 in words is "twenty trillion, four hundred thirty billion, twelve million, two hundred twenty thousand, four hundred thirty-three".