10128515323 has 4 divisors (see below), whose sum is σ = 10724310360. Its totient is φ = 9532720288.

The previous prime is 10128515317. The next prime is 10128515333. The reversal of 10128515323 is 32351582101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32351582101 = 191 ⋅169380011.

It is a cyclic number.

It is not a de Polignac number, because 10128515323 - 2¹³ = 10128507131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10128515333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297897493 + ... + 297897526.

It is an arithmetic number, because the mean of its divisors is an integer number (2681077590).

Almost surely, 2^10128515323 is an apocalyptic number.

10128515323 is a deficient number, since it is larger than the sum of its proper divisors (595795037).

10128515323 is an equidigital number, since it uses as much as digits as its factorization.

10128515323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595795036.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 10128515323 in words is "ten billion, one hundred twenty-eight million, five hundred fifteen thousand, three hundred twenty-three".