2203143121 has 2 divisors, whose sum is σ = 2203143122. Its totient is φ = 2203143120.

The previous prime is 2203143109. The next prime is 2203143143. The reversal of 2203143121 is 1213413022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1987376400 + 215766721 = 44580^2 + 14689^2 .

It is a cyclic number.

It is not a de Polignac number, because 2203143121 - 2¹³ = 2203134929 is a prime.

It is a super-2 number, since 2×2203143121² = 9707679223219241282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2203143191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101571560 + 1101571561.

It is an arithmetic number, because the mean of its divisors is an integer number (1101571561).

Almost surely, 2^2203143121 is an apocalyptic number.

It is an amenable number.

2203143121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2203143121 is an equidigital number, since it uses as much as digits as its factorization.

2203143121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2203143121 is about 46937.6514218596. The cubic root of 2203143121 is about 1301.2105333730.

Adding to 2203143121 its reverse (1213413022), we get a palindrome (3416556143).

The spelling of 2203143121 in words is "two billion, two hundred three million, one hundred forty-three thousand, one hundred twenty-one".