20210211100973 has 2 divisors, whose sum is σ = 20210211100974. Its totient is φ = 20210211100972.

The previous prime is 20210211100931. The next prime is 20210211101029. The reversal of 20210211100973 is 37900111201202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12788362470724 + 7421848630249 = 3576082^2 + 2724307^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210211100973 - 2¹⁴ = 20210211084589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210217100973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105105550486 + 10105105550487.

It is an arithmetic number, because the mean of its divisors is an integer number (10105105550487).

Almost surely, 2^{20210211100973} is an apocalyptic number.

It is an amenable number.

20210211100973 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210211100973 is an equidigital number, since it uses as much as digits as its factorization.

20210211100973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 20210211100973 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred thousand, nine hundred seventy-three".