20200011212123 has 2 divisors, whose sum is σ = 20200011212124. Its totient is φ = 20200011212122.

The previous prime is 20200011212083. The next prime is 20200011212279. The reversal of 20200011212123 is 32121211000202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20200011212123 - 2³⁸ = 19925133305179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20200011202123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100005606061 + 10100005606062.

It is an arithmetic number, because the mean of its divisors is an integer number (10100005606062).

Almost surely, 2^{20200011212123} is an apocalyptic number.

20200011212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200011212123 is an equidigital number, since it uses as much as digits as its factorization.

20200011212123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20200011212123 its reverse (32121211000202), we get a palindrome (52321222212325).

The spelling of 20200011212123 in words is "twenty trillion, two hundred billion, eleven million, two hundred twelve thousand, one hundred twenty-three".