213212032330331 has 4 divisors (see below), whose sum is σ = 213212090413464. Its totient is φ = 213211974247200.

The previous prime is 213212032330321. The next prime is 213212032330351. The reversal of 213212032330331 is 133033230212312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213212032330331 is a prime.

It is a super-2 number, since 2×213212032330331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213212032330294 and 213212032330303.

It is not an unprimeable number, because it can be changed into a prime (213212032330321) 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, 23134910 + ... + 31010451.

It is an arithmetic number, because the mean of its divisors is an integer number (53303022603366).

Almost surely, 2^{213212032330331} is an apocalyptic number.

213212032330331 is a deficient number, since it is larger than the sum of its proper divisors (58083133).

213212032330331 is an equidigital number, since it uses as much as digits as its factorization.

213212032330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58083132.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 213212032330331 its reverse (133033230212312), we get a palindrome (346245262542643).

The spelling of 213212032330331 in words is "two hundred thirteen trillion, two hundred twelve billion, thirty-two million, three hundred thirty thousand, three hundred thirty-one".