213123031220310 has 16 divisors (see below), whose sum is σ = 511495274928816. Its totient is φ = 56832808325408.

The previous prime is 213123031220251. The next prime is 213123031220339. The reversal of 213123031220310 is 13022130321312.

It is a super-2 number, since 2×213123031220310² (a number of 29 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 7 ways as a sum of consecutive naturals, for example, 3552050520309 + ... + 3552050520368.

It is an arithmetic number, because the mean of its divisors is an integer number (31968454683051).

Almost surely, 2^{213123031220310} is an apocalyptic number.

213123031220310 is an abundant number, since it is smaller than the sum of its proper divisors (298372243708506).

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

213123031220310 is a wasteful number, since it uses less digits than its factorization.

213123031220310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104101040687.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 213123031220310 its reverse (13022130321312), we get a palindrome (226145161541622).

The spelling of 213123031220310 in words is "two hundred thirteen trillion, one hundred twenty-three billion, thirty-one million, two hundred twenty thousand, three hundred ten".