20414355233 has 4 divisors (see below), whose sum is σ = 20527141908. Its totient is φ = 20301568560.

The previous prime is 20414355217. The next prime is 20414355257. The reversal of 20414355233 is 33255341402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33255341402 = 2 ⋅16627670701.

It can be written as a sum of positive squares in 2 ways, for example, as 4118045584 + 16296309649 = 64172^2 + 127657^2 .

It is a cyclic number.

It is not a de Polignac number, because 20414355233 - 2⁴ = 20414355217 is a prime.

It is a super-2 number, since 2×20414355233² (a number of 21 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 20414355233.

It is not an unprimeable number, because it can be changed into a prime (20414355133) 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, 56393066 + ... + 56393427.

It is an arithmetic number, because the mean of its divisors is an integer number (5131785477).

Almost surely, 2^20414355233 is an apocalyptic number.

It is an amenable number.

20414355233 is a deficient number, since it is larger than the sum of its proper divisors (112786675).

20414355233 is a wasteful number, since it uses less digits than its factorization.

20414355233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112786674.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 20414355233 its reverse (33255341402), we get a palindrome (53669696635).

The spelling of 20414355233 in words is "twenty billion, four hundred fourteen million, three hundred fifty-five thousand, two hundred thirty-three".