2103221231 has 2 divisors, whose sum is σ = 2103221232. Its totient is φ = 2103221230.

The previous prime is 2103221171. The next prime is 2103221251. The reversal of 2103221231 is 1321223012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2103221231 - 2²⁶ = 2036112367 is a prime.

It is a super-2 number, since 2×2103221231² = 8847079093058310722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103221251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051610615 + 1051610616.

It is an arithmetic number, because the mean of its divisors is an integer number (1051610616).

Almost surely, 2^2103221231 is an apocalyptic number.

2103221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103221231 is an equidigital number, since it uses as much as digits as its factorization.

2103221231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2103221231 is about 45860.8899935446. The cubic root of 2103221231 is about 1281.2335989461.

Adding to 2103221231 its reverse (1321223012), we get a palindrome (3424444243).

The spelling of 2103221231 in words is "two billion, one hundred three million, two hundred twenty-one thousand, two hundred thirty-one".