2231121210203 has 2 divisors, whose sum is σ = 2231121210204. Its totient is φ = 2231121210202.

The previous prime is 2231121210191. The next prime is 2231121210229. The reversal of 2231121210203 is 3020121211322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2231121210203 - 2¹² = 2231121206107 is a prime.

It is a super-3 number, since 3×2231121210203³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2231121210803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115560605101 + 1115560605102.

It is an arithmetic number, because the mean of its divisors is an integer number (1115560605102).

Almost surely, 2^{2231121210203} is an apocalyptic number.

2231121210203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231121210203 is an equidigital number, since it uses as much as digits as its factorization.

2231121210203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2231121210203 its reverse (3020121211322), we get a palindrome (5251242421525).

The spelling of 2231121210203 in words is "two trillion, two hundred thirty-one billion, one hundred twenty-one million, two hundred ten thousand, two hundred three".