153520173323 has 12 divisors (see below), whose sum is σ = 169157949240. Its totient is φ = 139222517280.

The previous prime is 153520173319. The next prime is 153520173341. The reversal of 153520173323 is 323371025351.

It is not a de Polignac number, because 153520173323 - 2² = 153520173319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153520173353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1501565 + ... + 1600542.

It is an arithmetic number, because the mean of its divisors is an integer number (14096495770).

Almost surely, 2^153520173323 is an apocalyptic number.

153520173323 is a deficient number, since it is larger than the sum of its proper divisors (15637775917).

153520173323 is a wasteful number, since it uses less digits than its factorization.

153520173323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102538 (or 3102527 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 35.

Adding to 153520173323 its reverse (323371025351), we get a palindrome (476891198674).

The spelling of 153520173323 in words is "one hundred fifty-three billion, five hundred twenty million, one hundred seventy-three thousand, three hundred twenty-three".