2120545513 has 4 divisors (see below), whose sum is σ = 2212743168. Its totient is φ = 2028347860.

The previous prime is 2120545489. The next prime is 2120545547. The reversal of 2120545513 is 3155450212.

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 2120545513 - 2⁵ = 2120545481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120545213) 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, 46098793 + ... + 46098838.

It is an arithmetic number, because the mean of its divisors is an integer number (553185792).

Almost surely, 2^2120545513 is an apocalyptic number.

2120545513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2120545513 is a deficient number, since it is larger than the sum of its proper divisors (92197655).

2120545513 is an equidigital number, since it uses as much as digits as its factorization.

2120545513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92197654.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2120545513 is about 46049.3812444858. The cubic root of 2120545513 is about 1284.7418343116.

Adding to 2120545513 its reverse (3155450212), we get a palindrome (5275995725).

The spelling of 2120545513 in words is "two billion, one hundred twenty million, five hundred forty-five thousand, five hundred thirteen".