213120111301 has 4 divisors (see below), whose sum is σ = 213121113100. Its totient is φ = 213119109504.

The previous prime is 213120111283. The next prime is 213120111307. The reversal of 213120111301 is 103111021312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 71874929025 + 141245182276 = 268095^2 + 375826^2 .

It is a cyclic number.

It is not a de Polignac number, because 213120111301 - 2⁹ = 213120110789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120111307) 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, 41106 + ... + 654163.

It is an arithmetic number, because the mean of its divisors is an integer number (53280278275).

Almost surely, 2^213120111301 is an apocalyptic number.

It is an amenable number.

213120111301 is a deficient number, since it is larger than the sum of its proper divisors (1001799).

213120111301 is an equidigital number, since it uses as much as digits as its factorization.

213120111301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001798.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 213120111301 its reverse (103111021312), we get a palindrome (316231132613).

The spelling of 213120111301 in words is "two hundred thirteen billion, one hundred twenty million, one hundred eleven thousand, three hundred one".