320123155316253 has 16 divisors (see below), whose sum is σ = 427049552938176. Its totient is φ = 213306099557760.

The previous prime is 320123155316219. The next prime is 320123155316281. The reversal of 320123155316253 is 352613551321023.

It is not a de Polignac number, because 320123155316253 - 2¹⁷ = 320123155185181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320123155316753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717717438 + ... + 718163328.

It is an arithmetic number, because the mean of its divisors is an integer number (26690597058636).

Almost surely, 2^{320123155316253} is an apocalyptic number.

It is an amenable number.

320123155316253 is a deficient number, since it is larger than the sum of its proper divisors (106926397621923).

320123155316253 is a wasteful number, since it uses less digits than its factorization.

320123155316253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567964.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 320123155316253 in words is "three hundred twenty trillion, one hundred twenty-three billion, one hundred fifty-five million, three hundred sixteen thousand, two hundred fifty-three".