1145241200381 has 2 divisors, whose sum is σ = 1145241200382. Its totient is φ = 1145241200380.

The previous prime is 1145241200359. The next prime is 1145241200419. The reversal of 1145241200381 is 1830021425411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615707008900 + 529534191481 = 784670^2 + 727691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145241200381 - 2³⁰ = 1144167458557 is a prime.

It is a super-2 number, since 2×1145241200381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145241200351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572620600190 + 572620600191.

It is an arithmetic number, because the mean of its divisors is an integer number (572620600191).

Almost surely, 2^{1145241200381} is an apocalyptic number.

It is an amenable number.

1145241200381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145241200381 is an equidigital number, since it uses as much as digits as its factorization.

1145241200381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

Adding to 1145241200381 its reverse (1830021425411), we get a palindrome (2975262625792).

The spelling of 1145241200381 in words is "one trillion, one hundred forty-five billion, two hundred forty-one million, two hundred thousand, three hundred eighty-one".