10420211203243 has 4 divisors (see below), whose sum is σ = 10420539958600. Its totient is φ = 10419882447888.

The previous prime is 10420211203231. The next prime is 10420211203313. The reversal of 10420211203243 is 34230211202401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10420211203243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10420211203543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164330130 + ... + 164393527.

It is an arithmetic number, because the mean of its divisors is an integer number (2605134989650).

Almost surely, 2^{10420211203243} is an apocalyptic number.

10420211203243 is a deficient number, since it is larger than the sum of its proper divisors (328755357).

10420211203243 is an equidigital number, since it uses as much as digits as its factorization.

10420211203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328755356.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 10420211203243 its reverse (34230211202401), we get a palindrome (44650422405644).

The spelling of 10420211203243 in words is "ten trillion, four hundred twenty billion, two hundred eleven million, two hundred three thousand, two hundred forty-three".