10211231220203 has 4 divisors (see below), whose sum is σ = 10996710544848. Its totient is φ = 9425751895560.

The previous prime is 10211231220181. The next prime is 10211231220227. The reversal of 10211231220203 is 30202213211201.

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

It is not a de Polignac number, because 10211231220203 - 2³² = 10206936252907 is a prime.

It is a super-2 number, since 2×10211231220203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10211231220233) 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, 392739662303 + ... + 392739662328.

It is an arithmetic number, because the mean of its divisors is an integer number (2749177636212).

Almost surely, 2^{10211231220203} is an apocalyptic number.

10211231220203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10211231220203 is a deficient number, since it is larger than the sum of its proper divisors (785479324645).

10211231220203 is an equidigital number, since it uses as much as digits as its factorization.

10211231220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785479324644.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10211231220203 its reverse (30202213211201), we get a palindrome (40413444431404).

The spelling of 10211231220203 in words is "ten trillion, two hundred eleven billion, two hundred thirty-one million, two hundred twenty thousand, two hundred three".