202100101220243 has 2 divisors, whose sum is σ = 202100101220244. Its totient is φ = 202100101220242.

The previous prime is 202100101220219. The next prime is 202100101220263. The reversal of 202100101220243 is 342022101001202.

It is an a-pointer prime, because the next prime (202100101220263) can be obtained adding 202100101220243 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202100101220243 - 2¹⁴ = 202100101203859 is a prime.

It is a super-2 number, since 2×202100101220243² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (202100101220263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050050610121 + 101050050610122.

It is an arithmetic number, because the mean of its divisors is an integer number (101050050610122).

Almost surely, 2^{202100101220243} is an apocalyptic number.

202100101220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100101220243 is an equidigital number, since it uses as much as digits as its factorization.

202100101220243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 202100101220243 its reverse (342022101001202), we get a palindrome (544122202221445).

The spelling of 202100101220243 in words is "two hundred two trillion, one hundred billion, one hundred one million, two hundred twenty thousand, two hundred forty-three".