320143320052 has 6 divisors (see below), whose sum is σ = 560250810098. Its totient is φ = 160071660024.

The previous prime is 320143320043. The next prime is 320143320061. The reversal of 320143320052 is 250023341023.

It is an interprime number because it is at equal distance from previous prime (320143320043) and next prime (320143320061).

It can be written as a sum of positive squares in only one way, i.e., 305990410896 + 14152909156 = 553164^2 + 118966^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320143319999 and 320143320026.

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, 40017915003 + ... + 40017915010.

Almost surely, 2^320143320052 is an apocalyptic number.

It is an amenable number.

320143320052 is a deficient number, since it is larger than the sum of its proper divisors (240107490046).

320143320052 is a wasteful number, since it uses less digits than its factorization.

320143320052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80035830017 (or 80035830015 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 320143320052 its reverse (250023341023), we get a palindrome (570166661075).

The spelling of 320143320052 in words is "three hundred twenty billion, one hundred forty-three million, three hundred twenty thousand, fifty-two".