213311120021113 has 4 divisors (see below), whose sum is σ = 220666675883940. Its totient is φ = 205955564158288.

The previous prime is 213311120021107. The next prime is 213311120021137. The reversal of 213311120021113 is 311120021113312.

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 129207052157184 + 84104067863929 = 11366928^2 + 9170827^2 .

It is a cyclic number.

It is not a de Polignac number, because 213311120021113 - 2¹⁷ = 213311119890041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213311120021183) 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, 3677777931370 + ... + 3677777931427.

It is an arithmetic number, because the mean of its divisors is an integer number (55166668970985).

Almost surely, 2^{213311120021113} is an apocalyptic number.

It is an amenable number.

213311120021113 is a deficient number, since it is larger than the sum of its proper divisors (7355555862827).

213311120021113 is an equidigital number, since it uses as much as digits as its factorization.

213311120021113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355555862826.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 213311120021113 its reverse (311120021113312), we get a palindrome (524431141134425).

The spelling of 213311120021113 in words is "two hundred thirteen trillion, three hundred eleven billion, one hundred twenty million, twenty-one thousand, one hundred thirteen".