213425250320 has 40 divisors (see below), whose sum is σ = 496239589080. Its totient is φ = 85365647360.

The previous prime is 213425250319. The next prime is 213425250359. The reversal of 213425250320 is 23052524312.

It can be written as a sum of positive squares in 4 ways, for example, as 10280337664 + 203144912656 = 101392^2 + 450716^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778786 + ... + 1894974.

It is an arithmetic number, because the mean of its divisors is an integer number (12405989727).

Almost surely, 2^213425250320 is an apocalyptic number.

213425250320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213425250320 is an abundant number, since it is smaller than the sum of its proper divisors (282814338760).

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

213425250320 is a wasteful number, since it uses less digits than its factorization.

213425250320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139163 (or 139157 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 213425250320 its reverse (23052524312), we get a palindrome (236477774632).

The spelling of 213425250320 in words is "two hundred thirteen billion, four hundred twenty-five million, two hundred fifty thousand, three hundred twenty".