20200200209951 has 2 divisors, whose sum is σ = 20200200209952. Its totient is φ = 20200200209950.

The previous prime is 20200200209947. The next prime is 20200200210131. The reversal of 20200200209951 is 15990200200202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200200209951 - 2² = 20200200209947 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20200200209051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100100104975 + 10100100104976.

It is an arithmetic number, because the mean of its divisors is an integer number (10100100104976).

Almost surely, 2^{20200200209951} is an apocalyptic number.

20200200209951 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200200209951 is an equidigital number, since it uses as much as digits as its factorization.

20200200209951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 20200200209951 in words is "twenty trillion, two hundred billion, two hundred million, two hundred nine thousand, nine hundred fifty-one".