213311304232 has 16 divisors (see below), whose sum is σ = 430724749140. Its totient is φ = 98451371136.

The previous prime is 213311304191. The next prime is 213311304251. The reversal of 213311304232 is 232403113312.

It can be written as a sum of positive squares in 2 ways, for example, as 211097978116 + 2213326116 = 459454^2 + 47046^2 .

It is a super-2 number, since 2×213311304232² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213311304197 and 213311304206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025535013 + ... + 1025535220.

Almost surely, 2^213311304232 is an apocalyptic number.

It is an amenable number.

213311304232 is an abundant number, since it is smaller than the sum of its proper divisors (217413444908).

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

213311304232 is a wasteful number, since it uses less digits than its factorization.

213311304232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051070252 (or 2051070248 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 213311304232 its reverse (232403113312), we get a palindrome (445714417544).

The spelling of 213311304232 in words is "two hundred thirteen billion, three hundred eleven million, three hundred four thousand, two hundred thirty-two".