2113214340121 has 4 divisors (see below), whose sum is σ = 2113333660852. Its totient is φ = 2113095019392.

The previous prime is 2113214340059. The next prime is 2113214340143. The reversal of 2113214340121 is 1210434123112.

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 1832246496025 + 280967844096 = 1353605^2 + 530064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113214340121 - 2³¹ = 2111066856473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113214310121) 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, 59633796 + ... + 59669221.

It is an arithmetic number, because the mean of its divisors is an integer number (528333415213).

Almost surely, 2^{2113214340121} is an apocalyptic number.

It is an amenable number.

2113214340121 is a deficient number, since it is larger than the sum of its proper divisors (119320731).

2113214340121 is a wasteful number, since it uses less digits than its factorization.

2113214340121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119320730.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 2113214340121 its reverse (1210434123112), we get a palindrome (3323648463233).

The spelling of 2113214340121 in words is "two trillion, one hundred thirteen billion, two hundred fourteen million, three hundred forty thousand, one hundred twenty-one".