213122122331203 has 4 divisors (see below), whose sum is σ = 213128436907408. Its totient is φ = 213115807755000.

The previous prime is 213122122331197. The next prime is 213122122331227. The reversal of 213122122331203 is 302133221221312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213122122331203 - 2⁵ = 213122122331171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213122122331003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157237476 + ... + 3157304977.

It is an arithmetic number, because the mean of its divisors is an integer number (53282109226852).

Almost surely, 2^{213122122331203} is an apocalyptic number.

213122122331203 is a deficient number, since it is larger than the sum of its proper divisors (6314576205).

213122122331203 is an equidigital number, since it uses as much as digits as its factorization.

213122122331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314576204.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 213122122331203 its reverse (302133221221312), we get a palindrome (515255343552515).

The spelling of 213122122331203 in words is "two hundred thirteen trillion, one hundred twenty-two billion, one hundred twenty-two million, three hundred thirty-one thousand, two hundred three".