11234142203281 has 2 divisors, whose sum is σ = 11234142203282. Its totient is φ = 11234142203280.

The previous prime is 11234142203279. The next prime is 11234142203329. The reversal of 11234142203281 is 18230224143211.

11234142203281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9723271022656 + 1510871180625 = 3118216^2 + 1229175^2 .

It is a cyclic number.

It is not a de Polignac number, because 11234142203281 - 2¹ = 11234142203279 is a prime.

It is a super-2 number, since 2×11234142203281² (a number of 27 digits) contains 22 as substring.

Together with 11234142203279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11234142203201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5617071101640 + 5617071101641.

It is an arithmetic number, because the mean of its divisors is an integer number (5617071101641).

Almost surely, 2^{11234142203281} is an apocalyptic number.

It is an amenable number.

11234142203281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11234142203281 is an equidigital number, since it uses as much as digits as its factorization.

11234142203281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 34.

Adding to 11234142203281 its reverse (18230224143211), we get a palindrome (29464366346492).

The spelling of 11234142203281 in words is "eleven trillion, two hundred thirty-four billion, one hundred forty-two million, two hundred three thousand, two hundred eighty-one".