2131223203 has 2 divisors, whose sum is σ = 2131223204. Its totient is φ = 2131223202.

The previous prime is 2131223201. The next prime is 2131223209. The reversal of 2131223203 is 3023221312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2131223203 - 2¹ = 2131223201 is a prime.

It is a super-2 number, since 2×2131223203² = 9084224682011158418, which contains 22 as substring.

Together with 2131223201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2131223201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065611601 + 1065611602.

It is an arithmetic number, because the mean of its divisors is an integer number (1065611602).

Almost surely, 2^2131223203 is an apocalyptic number.

2131223203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131223203 is an equidigital number, since it uses as much as digits as its factorization.

2131223203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2131223203 is about 46165.1730528545. The cubic root of 2131223203 is about 1286.8946001986.

Adding to 2131223203 its reverse (3023221312), we get a palindrome (5154444515).

The spelling of 2131223203 in words is "two billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred three".