20235254233 has 2 divisors, whose sum is σ = 20235254234. Its totient is φ = 20235254232.

The previous prime is 20235254213. The next prime is 20235254279. The reversal of 20235254233 is 33245253202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13456696009 + 6778558224 = 116003^2 + 82332^2 .

It is a cyclic number.

It is not a de Polignac number, because 20235254233 - 2¹³ = 20235246041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20235254195 and 20235254204.

It is not a weakly prime, because it can be changed into another prime (20235254213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10117627116 + 10117627117.

It is an arithmetic number, because the mean of its divisors is an integer number (10117627117).

Almost surely, 2^20235254233 is an apocalyptic number.

It is an amenable number.

20235254233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20235254233 is an equidigital number, since it uses as much as digits as its factorization.

20235254233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 31.

The spelling of 20235254233 in words is "twenty billion, two hundred thirty-five million, two hundred fifty-four thousand, two hundred thirty-three".