320021034112 has 32 divisors (see below), whose sum is σ = 686583592380. Its totient is φ = 147702014976.

The previous prime is 320021034103. The next prime is 320021034119. The reversal of 320021034112 is 211430120023.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 320021015616 + 18496 = 565704^2 + 136^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×320021034112² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320021034112.

It is not an unprimeable number, because it can be changed into a prime (320021034119) 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, 96158503 + ... + 96161830.

Almost surely, 2^320021034112 is an apocalyptic number.

320021034112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320021034112 is an abundant number, since it is smaller than the sum of its proper divisors (366562558268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320021034112 is a wasteful number, since it uses less digits than its factorization.

320021034112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192320360 (or 192320348 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 320021034112 its reverse (211430120023), we get a palindrome (531451154135).

The spelling of 320021034112 in words is "three hundred twenty billion, twenty-one million, thirty-four thousand, one hundred twelve".