2120413511 has 4 divisors (see below), whose sum is σ = 2121551112. Its totient is φ = 2119275912.

The previous prime is 2120413499. The next prime is 2120413571. The reversal of 2120413511 is 1153140212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120413511 - 2²⁶ = 2053304647 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 (2120413571) 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, 566000 + ... + 569733.

It is an arithmetic number, because the mean of its divisors is an integer number (530387778).

Almost surely, 2^2120413511 is an apocalyptic number.

2120413511 is a deficient number, since it is larger than the sum of its proper divisors (1137601).

2120413511 is a wasteful number, since it uses less digits than its factorization.

2120413511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137600.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2120413511 is about 46047.9479564508. The cubic root of 2120413511 is about 1284.7151757608.

Adding to 2120413511 its reverse (1153140212), we get a palindrome (3273553723).

The spelling of 2120413511 in words is "two billion, one hundred twenty million, four hundred thirteen thousand, five hundred eleven".