128230253835 has 16 divisors (see below), whose sum is σ = 205210591776. Its totient is φ = 68375406848.

The previous prime is 128230253797. The next prime is 128230253843. The reversal of 128230253835 is 538352032821.

It is a cyclic number.

It is not a de Polignac number, because 128230253835 - 2⁶ = 128230253771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803274 + ... + 949583.

It is an arithmetic number, because the mean of its divisors is an integer number (12825661986).

Almost surely, 2^128230253835 is an apocalyptic number.

128230253835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128230253835 is a deficient number, since it is larger than the sum of its proper divisors (76980337941).

128230253835 is a wasteful number, since it uses less digits than its factorization.

128230253835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757742.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 128230253835 in words is "one hundred twenty-eight billion, two hundred thirty million, two hundred fifty-three thousand, eight hundred thirty-five".