2231201320 has 16 divisors (see below), whose sum is σ = 5020203060. Its totient is φ = 892480512.

The previous prime is 2231201309. The next prime is 2231201321. The reversal of 2231201320 is 231021322.

2231201320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1993979716 + 237221604 = 44654^2 + 15402^2 .

It is a super-3 number, since 3×2231201320³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231201294 and 2231201303.

It is not an unprimeable number, because it can be changed into a prime (2231201321) 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, 27889977 + ... + 27890056.

Almost surely, 2^2231201320 is an apocalyptic number.

2231201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231201320 is an abundant number, since it is smaller than the sum of its proper divisors (2789001740).

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

2231201320 is a wasteful number, since it uses less digits than its factorization.

2231201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55780044 (or 55780040 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2231201320 is about 47235.5937826550. The cubic root of 2231201320 is about 1306.7111174082.

Adding to 2231201320 its reverse (231021322), we get a palindrome (2462222642).

The spelling of 2231201320 in words is "two billion, two hundred thirty-one million, two hundred one thousand, three hundred twenty".