211213102203113 has 4 divisors (see below), whose sum is σ = 218496312623940. Its totient is φ = 203929891782288.

The previous prime is 211213102203107. The next prime is 211213102203127. The reversal of 211213102203113 is 311302201312112.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 181035625682704 + 30177476520409 = 13454948^2 + 5493403^2 .

It is not a de Polignac number, because 211213102203113 - 2⁸ = 211213102202857 is a prime.

It is a super-2 number, since 2×211213102203113² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211213102203133) 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, 3641605210370 + ... + 3641605210427.

It is an arithmetic number, because the mean of its divisors is an integer number (54624078155985).

Almost surely, 2^{211213102203113} is an apocalyptic number.

It is an amenable number.

211213102203113 is a deficient number, since it is larger than the sum of its proper divisors (7283210420827).

211213102203113 is an equidigital number, since it uses as much as digits as its factorization.

211213102203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283210420826.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 211213102203113 its reverse (311302201312112), we get a palindrome (522515303515225).

The spelling of 211213102203113 in words is "two hundred eleven trillion, two hundred thirteen billion, one hundred two million, two hundred three thousand, one hundred thirteen".