1145540205101 has 2 divisors, whose sum is σ = 1145540205102. Its totient is φ = 1145540205100.

The previous prime is 1145540205083. The next prime is 1145540205109. The reversal of 1145540205101 is 1015020455411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 955770193225 + 189770011876 = 977635^2 + 435626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145540205101 - 2¹⁰ = 1145540204077 is a prime.

It is a super-2 number, since 2×1145540205101² (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 (1145540205109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572770102550 + 572770102551.

It is an arithmetic number, because the mean of its divisors is an integer number (572770102551).

Almost surely, 2^{1145540205101} is an apocalyptic number.

It is an amenable number.

1145540205101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145540205101 is an equidigital number, since it uses as much as digits as its factorization.

1145540205101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000, while the sum is 29.

The spelling of 1145540205101 in words is "one trillion, one hundred forty-five billion, five hundred forty million, two hundred five thousand, one hundred one".