2120011213 has 4 divisors (see below), whose sum is σ = 2120132448. Its totient is φ = 2119889980.

The previous prime is 2120011147. The next prime is 2120011217. The reversal of 2120011213 is 3121100212.

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 a de Polignac number, because none of the positive numbers 2^k-2120011213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120011193 and 2120011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120011217) 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, 28831 + ... + 71212.

It is an arithmetic number, because the mean of its divisors is an integer number (530033112).

Almost surely, 2^2120011213 is an apocalyptic number.

It is an amenable number.

2120011213 is a deficient number, since it is larger than the sum of its proper divisors (121235).

2120011213 is a wasteful number, since it uses less digits than its factorization.

2120011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121234.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2120011213 is about 46043.5794981233. The cubic root of 2120011213 is about 1284.6339225787.

Adding to 2120011213 its reverse (3121100212), we get a palindrome (5241111425).

The spelling of 2120011213 in words is "two billion, one hundred twenty million, eleven thousand, two hundred thirteen".