320123140102 has 4 divisors (see below), whose sum is σ = 480184710156. Its totient is φ = 160061570050.

The previous prime is 320123140081. The next prime is 320123140111. The reversal of 320123140102 is 201041321023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201041321023 = 23 ⋅8740927001.

It is a self number, because there is not a number n which added to its sum of digits gives 320123140102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80030785024 + ... + 80030785027.

It is an arithmetic number, because the mean of its divisors is an integer number (120046177539).

Almost surely, 2^320123140102 is an apocalyptic number.

320123140102 is a deficient number, since it is larger than the sum of its proper divisors (160061570054).

320123140102 is a wasteful number, since it uses less digits than its factorization.

320123140102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160061570053.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 320123140102 its reverse (201041321023), we get a palindrome (521164461125).

The spelling of 320123140102 in words is "three hundred twenty billion, one hundred twenty-three million, one hundred forty thousand, one hundred two".