320153023 has 4 divisors (see below), whose sum is σ = 320448640. Its totient is φ = 319857408.

The previous prime is 320152979. The next prime is 320153063. The reversal of 320153023 is 320351023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320153023 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 (320153063) 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, 146178 + ... + 148351.

It is an arithmetic number, because the mean of its divisors is an integer number (80112160).

Almost surely, 2^320153023 is an apocalyptic number.

320153023 is a deficient number, since it is larger than the sum of its proper divisors (295617).

320153023 is a wasteful number, since it uses less digits than its factorization.

320153023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295616.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 320153023 is about 17892.8204316704. The cubic root of 320153023 is about 684.0993886503.

The spelling of 320153023 in words is "three hundred twenty million, one hundred fifty-three thousand, twenty-three".