20210213113 has 4 divisors (see below), whose sum is σ = 21273908560. Its totient is φ = 19146517668.

The previous prime is 20210213099. The next prime is 20210213143. The reversal of 20210213113 is 31131201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20210213113 - 2¹⁷ = 20210082041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210213143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531847695 + ... + 531847732.

It is an arithmetic number, because the mean of its divisors is an integer number (5318477140).

Almost surely, 2^20210213113 is an apocalyptic number.

It is an amenable number.

20210213113 is a deficient number, since it is larger than the sum of its proper divisors (1063695447).

20210213113 is a wasteful number, since it uses less digits than its factorization.

20210213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063695446.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20210213113 its reverse (31131201202), we get a palindrome (51341414315).

The spelling of 20210213113 in words is "twenty billion, two hundred ten million, two hundred thirteen thousand, one hundred thirteen".