320187371153 has 4 divisors (see below), whose sum is σ = 344817168948. Its totient is φ = 295557573360.

The previous prime is 320187371149. The next prime is 320187371201. The reversal of 320187371153 is 351173781023.

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

It can be written as a sum of positive squares in 2 ways, for example, as 106727662864 + 213459708289 = 326692^2 + 462017^2 .

It is a cyclic number.

It is not a de Polignac number, because 320187371153 - 2² = 320187371149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320187371153.

It is not an unprimeable number, because it can be changed into a prime (320187371123) 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, 12314898878 + ... + 12314898903.

It is an arithmetic number, because the mean of its divisors is an integer number (86204292237).

Almost surely, 2^320187371153 is an apocalyptic number.

It is an amenable number.

320187371153 is a deficient number, since it is larger than the sum of its proper divisors (24629797795).

320187371153 is a wasteful number, since it uses less digits than its factorization.

320187371153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24629797794.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 320187371153 in words is "three hundred twenty billion, one hundred eighty-seven million, three hundred seventy-one thousand, one hundred fifty-three".