1124728012813 has 2 divisors, whose sum is σ = 1124728012814. Its totient is φ = 1124728012812.

The previous prime is 1124728012799. The next prime is 1124728012829. The reversal of 1124728012813 is 3182108274211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122798782884 + 1929229929 = 1059622^2 + 43923^2 .

It is an emirp because it is prime and its reverse (3182108274211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1124728012813 - 2³³ = 1116138078221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124728012853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562364006406 + 562364006407.

It is an arithmetic number, because the mean of its divisors is an integer number (562364006407).

Almost surely, 2^{1124728012813} is an apocalyptic number.

It is an amenable number.

1124728012813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124728012813 is an equidigital number, since it uses as much as digits as its factorization.

1124728012813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 1124728012813 in words is "one trillion, one hundred twenty-four billion, seven hundred twenty-eight million, twelve thousand, eight hundred thirteen".