20935307233 has 2 divisors, whose sum is σ = 20935307234. Its totient is φ = 20935307232.

The previous prime is 20935307201. The next prime is 20935307257. The reversal of 20935307233 is 33270353902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17261492689 + 3673814544 = 131383^2 + 60612^2 .

It is a cyclic number.

It is not a de Polignac number, because 20935307233 - 2⁵ = 20935307201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20935307192 and 20935307201.

It is not a weakly prime, because it can be changed into another prime (20935307633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10467653616 + 10467653617.

It is an arithmetic number, because the mean of its divisors is an integer number (10467653617).

Almost surely, 2^20935307233 is an apocalyptic number.

It is an amenable number.

20935307233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20935307233 is an equidigital number, since it uses as much as digits as its factorization.

20935307233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 37.

The spelling of 20935307233 in words is "twenty billion, nine hundred thirty-five million, three hundred seven thousand, two hundred thirty-three".