2231243243153 has 2 divisors, whose sum is σ = 2231243243154. Its totient is φ = 2231243243152.

The previous prime is 2231243243149. The next prime is 2231243243263. The reversal of 2231243243153 is 3513423421322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1264122446224 + 967120796929 = 1124332^2 + 983423^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231243243153 - 2² = 2231243243149 is a prime.

It is a super-3 number, since 3×2231243243153³ (a number of 38 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2231243243113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115621621576 + 1115621621577.

It is an arithmetic number, because the mean of its divisors is an integer number (1115621621577).

Almost surely, 2^{2231243243153} is an apocalyptic number.

It is an amenable number.

2231243243153 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231243243153 is an equidigital number, since it uses as much as digits as its factorization.

2231243243153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 35.

Adding to 2231243243153 its reverse (3513423421322), we get a palindrome (5744666664475).

The spelling of 2231243243153 in words is "two trillion, two hundred thirty-one billion, two hundred forty-three million, two hundred forty-three thousand, one hundred fifty-three".