2231201313 has 12 divisors (see below), whose sum is σ = 3515832528. Its totient is φ = 1352243160.

The previous prime is 2231201309. The next prime is 2231201321. The reversal of 2231201313 is 3131021322.

2231201313 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2231201313 - 2² = 2231201309 is a prime.

It is a super-3 number, since 3×2231201313³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2231201383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11268595 + ... + 11268792.

It is an arithmetic number, because the mean of its divisors is an integer number (292986044).

Almost surely, 2^2231201313 is an apocalyptic number.

It is an amenable number.

2231201313 is a deficient number, since it is larger than the sum of its proper divisors (1284631215).

2231201313 is a wasteful number, since it uses less digits than its factorization.

2231201313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22537404 (or 22537401 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2231201313 is about 47235.5937085584. The cubic root of 2231201313 is about 1306.7111160417.

Adding to 2231201313 its reverse (3131021322), we get a palindrome (5362222635).

Subtracting 2231201313 from its reverse (3131021322), we obtain a square (899820009 = 29997²).

The spelling of 2231201313 in words is "two billion, two hundred thirty-one million, two hundred one thousand, three hundred thirteen".