128650242373 has 2 divisors, whose sum is σ = 128650242374. Its totient is φ = 128650242372.

The previous prime is 128650242323. The next prime is 128650242401. The reversal of 128650242373 is 373242056821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93762726849 + 34887515524 = 306207^2 + 186782^2 .

It is an emirp because it is prime and its reverse (373242056821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128650242373 is a prime.

It is a super-2 number, since 2×128650242373² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128650242323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64325121186 + 64325121187.

It is an arithmetic number, because the mean of its divisors is an integer number (64325121187).

Almost surely, 2^128650242373 is an apocalyptic number.

It is an amenable number.

128650242373 is a deficient number, since it is larger than the sum of its proper divisors (1).

128650242373 is an equidigital number, since it uses as much as digits as its factorization.

128650242373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 128650242373 in words is "one hundred twenty-eight billion, six hundred fifty million, two hundred forty-two thousand, three hundred seventy-three".