10203312211 has 4 divisors (see below), whose sum is σ = 10255105872. Its totient is φ = 10151518552.

The previous prime is 10203312199. The next prime is 10203312241. The reversal of 10203312211 is 11221330201.

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

It is a cyclic number.

It is not a de Polignac number, because 10203312211 - 2⁷ = 10203312083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203312241) 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, 25896535 + ... + 25896928.

It is an arithmetic number, because the mean of its divisors is an integer number (2563776468).

Almost surely, 2^10203312211 is an apocalyptic number.

10203312211 is a deficient number, since it is larger than the sum of its proper divisors (51793661).

10203312211 is an equidigital number, since it uses as much as digits as its factorization.

10203312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51793660.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10203312211 its reverse (11221330201), we get a palindrome (21424642412).

It can be divided in two parts, 102033 and 12211, that added together give a square (114244 = 338²).

The spelling of 10203312211 in words is "ten billion, two hundred three million, three hundred twelve thousand, two hundred eleven".