43303121847157 has 2 divisors, whose sum is σ = 43303121847158. Its totient is φ = 43303121847156.

The previous prime is 43303121847131. The next prime is 43303121847253. The reversal of 43303121847157 is 75174812130334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43108075074276 + 195046772881 = 6565674^2 + 441641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43303121847157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43303121847157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43303121647157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21651560923578 + 21651560923579.

It is an arithmetic number, because the mean of its divisors is an integer number (21651560923579).

Almost surely, 2^{43303121847157} is an apocalyptic number.

It is an amenable number.

43303121847157 is a deficient number, since it is larger than the sum of its proper divisors (1).

43303121847157 is an equidigital number, since it uses as much as digits as its factorization.

43303121847157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 43303121847157 in words is "forty-three trillion, three hundred three billion, one hundred twenty-one million, eight hundred forty-seven thousand, one hundred fifty-seven".