2231123201 has 2 divisors, whose sum is σ = 2231123202. Its totient is φ = 2231123200.

The previous prime is 2231123183. The next prime is 2231123261. The reversal of 2231123201 is 1023211322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2203833025 + 27290176 = 46945^2 + 5224^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231123201 - 2⁶ = 2231123137 is a prime.

It is a super-3 number, since 3×2231123201³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231123201.

It is not a weakly prime, because it can be changed into another prime (2231123261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115561600 + 1115561601.

It is an arithmetic number, because the mean of its divisors is an integer number (1115561601).

Almost surely, 2^2231123201 is an apocalyptic number.

It is an amenable number.

2231123201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231123201 is an equidigital number, since it uses as much as digits as its factorization.

2231123201 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 2231123201 is about 47234.7668672134. The cubic root of 2231123201 is about 1306.6958670053.

Adding to 2231123201 its reverse (1023211322), we get a palindrome (3254334523).

The spelling of 2231123201 in words is "two billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred one".