20210101210043 has 2 divisors, whose sum is σ = 20210101210044. Its totient is φ = 20210101210042.

The previous prime is 20210101210009. The next prime is 20210101210121. The reversal of 20210101210043 is 34001210101202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210101210043 - 2¹² = 20210101205947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20210101210843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105050605021 + 10105050605022.

It is an arithmetic number, because the mean of its divisors is an integer number (10105050605022).

Almost surely, 2^{20210101210043} is an apocalyptic number.

20210101210043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210101210043 is an equidigital number, since it uses as much as digits as its factorization.

20210101210043 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20210101210043 its reverse (34001210101202), we get a palindrome (54211311311245).

The spelling of 20210101210043 in words is "twenty trillion, two hundred ten billion, one hundred one million, two hundred ten thousand, forty-three".