213131100122 has 8 divisors (see below), whose sum is σ = 319703479200. Its totient is φ = 106563273724.

The previous prime is 213131100097. The next prime is 213131100131. The reversal of 213131100122 is 221001131312.

213131100122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213131100122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018622 + ... + 1209897.

It is an arithmetic number, because the mean of its divisors is an integer number (39962934900).

Almost surely, 2^213131100122 is an apocalyptic number.

213131100122 is a deficient number, since it is larger than the sum of its proper divisors (106572379078).

213131100122 is a wasteful number, since it uses less digits than its factorization.

213131100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276340.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 213131100122 its reverse (221001131312), we get a palindrome (434132231434).

The spelling of 213131100122 in words is "two hundred thirteen billion, one hundred thirty-one million, one hundred thousand, one hundred twenty-two".