20310200357 has 2 divisors, whose sum is σ = 20310200358. Its totient is φ = 20310200356.

The previous prime is 20310200293. The next prime is 20310200359. The reversal of 20310200357 is 75300201302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10166890561 + 10143309796 = 100831^2 + 100714^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310200357 - 2⁶ = 20310200293 is a prime.

Together with 20310200359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20310200359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10155100178 + 10155100179.

It is an arithmetic number, because the mean of its divisors is an integer number (10155100179).

Almost surely, 2^20310200357 is an apocalyptic number.

It is an amenable number.

20310200357 is a deficient number, since it is larger than the sum of its proper divisors (1).

20310200357 is an equidigital number, since it uses as much as digits as its factorization.

20310200357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

Adding to 20310200357 its reverse (75300201302), we get a palindrome (95610401659).

The spelling of 20310200357 in words is "twenty billion, three hundred ten million, two hundred thousand, three hundred fifty-seven".