213302131220 has 24 divisors (see below), whose sum is σ = 447956325600. Its totient is φ = 85316690592.

The previous prime is 213302131087. The next prime is 213302131253. The reversal of 213302131220 is 22131203312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 213302131192 and 213302131201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178151 + ... + 677009.

It is an arithmetic number, because the mean of its divisors is an integer number (18664846900).

Almost surely, 2^213302131220 is an apocalyptic number.

213302131220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213302131220 is an abundant number, since it is smaller than the sum of its proper divisors (234654194380).

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

213302131220 is a wasteful number, since it uses less digits than its factorization.

213302131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520247 (or 520245 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213302131220 its reverse (22131203312), we get a palindrome (235433334532).

The spelling of 213302131220 in words is "two hundred thirteen billion, three hundred two million, one hundred thirty-one thousand, two hundred twenty".