20000212121023 has 2 divisors, whose sum is σ = 20000212121024. Its totient is φ = 20000212121022.

The previous prime is 20000212120981. The next prime is 20000212121059. The reversal of 20000212121023 is 32012121200002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20000212121023 - 2¹⁷ = 20000211989951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000212120988 and 20000212121006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000212121623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000106060511 + 10000106060512.

It is an arithmetic number, because the mean of its divisors is an integer number (10000106060512).

Almost surely, 2^{20000212121023} is an apocalyptic number.

20000212121023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000212121023 is an equidigital number, since it uses as much as digits as its factorization.

20000212121023 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 16.

Adding to 20000212121023 its reverse (32012121200002), we get a palindrome (52012333321025).

The spelling of 20000212121023 in words is "twenty trillion, two hundred twelve million, one hundred twenty-one thousand, twenty-three".