320011263517 has 4 divisors (see below), whose sum is σ = 349103196576. Its totient is φ = 290919330460.

The previous prime is 320011263499. The next prime is 320011263521. The reversal of 320011263517 is 715362110023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 320011263517 - 2³¹ = 317863779869 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 (320011263217) 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, 14545966513 + ... + 14545966534.

It is an arithmetic number, because the mean of its divisors is an integer number (87275799144).

Almost surely, 2^320011263517 is an apocalyptic number.

It is an amenable number.

320011263517 is a deficient number, since it is larger than the sum of its proper divisors (29091933059).

320011263517 is a wasteful number, since it uses less digits than its factorization.

320011263517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29091933058.

The product of its (nonzero) digits is 7560, while the sum is 31.

The spelling of 320011263517 in words is "three hundred twenty billion, eleven million, two hundred sixty-three thousand, five hundred seventeen".