128155703323 has 16 divisors (see below), whose sum is σ = 140816632320. Its totient is φ = 116090162496.

The previous prime is 128155703293. The next prime is 128155703329. The reversal of 128155703323 is 323307551821.

It is a cyclic number.

It is not a de Polignac number, because 128155703323 - 2⁹ = 128155702811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128155703329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197186 + ... + 1299832.

It is an arithmetic number, because the mean of its divisors is an integer number (8801039520).

Almost surely, 2^128155703323 is an apocalyptic number.

128155703323 is a deficient number, since it is larger than the sum of its proper divisors (12660928997).

128155703323 is a wasteful number, since it uses less digits than its factorization.

128155703323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105546.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 128155703323 in words is "one hundred twenty-eight billion, one hundred fifty-five million, seven hundred three thousand, three hundred twenty-three".