320240213372 has 6 divisors (see below), whose sum is σ = 560420373408. Its totient is φ = 160120106684.

The previous prime is 320240213339. The next prime is 320240213383. The reversal of 320240213372 is 273312042023.

It is a happy number.

It is a super-2 number, since 2×320240213372² (a number of 24 digits) contains 22 as substring.

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, 40030026668 + ... + 40030026675.

It is an arithmetic number, because the mean of its divisors is an integer number (93403395568).

Almost surely, 2^320240213372 is an apocalyptic number.

It is an amenable number.

320240213372 is a deficient number, since it is larger than the sum of its proper divisors (240180160036).

320240213372 is a wasteful number, since it uses less digits than its factorization.

320240213372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80060053347 (or 80060053345 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

Adding to 320240213372 its reverse (273312042023), we get a palindrome (593552255395).

The spelling of 320240213372 in words is "three hundred twenty billion, two hundred forty million, two hundred thirteen thousand, three hundred seventy-two".