213100231430420 has 12 divisors (see below), whose sum is σ = 447510486003924. Its totient is φ = 85240092572160.

The previous prime is 213100231430369. The next prime is 213100231430423. The reversal of 213100231430420 is 24034132001312.

It can be written as a sum of positive squares in 2 ways, for example, as 119628731250064 + 93471500180356 = 10937492^2 + 9668066^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213100231430420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213100231430423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5327505785741 + ... + 5327505785780.

It is an arithmetic number, because the mean of its divisors is an integer number (37292540500327).

Almost surely, 2^{213100231430420} is an apocalyptic number.

213100231430420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213100231430420 is an abundant number, since it is smaller than the sum of its proper divisors (234410254573504).

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

213100231430420 is a wasteful number, since it uses less digits than its factorization.

213100231430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655011571530 (or 10655011571528 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 213100231430420 its reverse (24034132001312), we get a palindrome (237134363431732).

The spelling of 213100231430420 in words is "two hundred thirteen trillion, one hundred billion, two hundred thirty-one million, four hundred thirty thousand, four hundred twenty".