213122330310 has 32 divisors (see below), whose sum is σ = 511515770112. Its totient is φ = 56830157280.

The previous prime is 213122330303. The next prime is 213122330327. The reversal of 213122330310 is 13033221312.

It is a super-2 number, since 2×213122330310² (a number of 23 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 in 15 ways as a sum of consecutive naturals, for example, 611877 + ... + 894783.

It is an arithmetic number, because the mean of its divisors is an integer number (15984867816).

Almost surely, 2^213122330310 is an apocalyptic number.

213122330310 is an abundant number, since it is smaller than the sum of its proper divisors (298393439802).

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

213122330310 is a wasteful number, since it uses less digits than its factorization.

213122330310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308028.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 213122330310 its reverse (13033221312), we get a palindrome (226155551622).

The spelling of 213122330310 in words is "two hundred thirteen billion, one hundred twenty-two million, three hundred thirty thousand, three hundred ten".