320123145435 has 8 divisors (see below), whose sum is σ = 512197032720. Its totient is φ = 170732344224.

The previous prime is 320123145431. The next prime is 320123145443. The reversal of 320123145435 is 534541321023.

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

It is not a de Polignac number, because 320123145435 - 2² = 320123145431 is a prime.

It is a super-2 number, since 2×320123145435² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320123145396 and 320123145405.

It is not an unprimeable number, because it can be changed into a prime (320123145431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10670771500 + ... + 10670771529.

It is an arithmetic number, because the mean of its divisors is an integer number (64024629090).

Almost surely, 2^320123145435 is an apocalyptic number.

320123145435 is a deficient number, since it is larger than the sum of its proper divisors (192073887285).

320123145435 is a wasteful number, since it uses less digits than its factorization.

320123145435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21341543037.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 320123145435 its reverse (534541321023), we get a palindrome (854664466458).

The spelling of 320123145435 in words is "three hundred twenty billion, one hundred twenty-three million, one hundred forty-five thousand, four hundred thirty-five".