163145513231023 has 8 divisors (see below), whose sum is σ = 163173489230592. Its totient is φ = 163117537888536.

The previous prime is 163145513230979. The next prime is 163145513231101. The reversal of 163145513231023 is 320132315541361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163145513231023 - 2⁴¹ = 160946489975471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163145513261023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990918636 + ... + 991083262.

It is an arithmetic number, because the mean of its divisors is an integer number (20396686153824).

Almost surely, 2^{163145513231023} is an apocalyptic number.

163145513231023 is a deficient number, since it is larger than the sum of its proper divisors (27975999569).

163145513231023 is a wasteful number, since it uses less digits than its factorization.

163145513231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328541.

The product of its (nonzero) digits is 194400, while the sum is 40.

Adding to 163145513231023 its reverse (320132315541361), we get a palindrome (483277828772384).

The spelling of 163145513231023 in words is "one hundred sixty-three trillion, one hundred forty-five billion, five hundred thirteen million, two hundred thirty-one thousand, twenty-three".