213031403310 has 96 divisors (see below), whose sum is σ = 562256142336. Its totient is φ = 51618635200.

The previous prime is 213031403293. The next prime is 213031403317. The reversal of 213031403310 is 13304130312.

It is a super-2 number, since 2×213031403310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213031403317) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7998115 + ... + 8024705.

It is an arithmetic number, because the mean of its divisors is an integer number (5856834816).

Almost surely, 2^213031403310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213031403310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281128071168).

213031403310 is an abundant number, since it is smaller than the sum of its proper divisors (349224739026).

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

213031403310 is a wasteful number, since it uses less digits than its factorization.

213031403310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28830 (or 28819 counting only the distinct ones).

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

Adding to 213031403310 its reverse (13304130312), we get a palindrome (226335533622).

The spelling of 213031403310 in words is "two hundred thirteen billion, thirty-one million, four hundred three thousand, three hundred ten".