2120624413 has 4 divisors (see below), whose sum is σ = 2147467840. Its totient is φ = 2093780988.

The previous prime is 2120624399. The next prime is 2120624423. The reversal of 2120624413 is 3144260212.

It is a happy number.

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 2120624413 - 2²¹ = 2118527261 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 (2120624423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13421595 + ... + 13421752.

It is an arithmetic number, because the mean of its divisors is an integer number (536866960).

Almost surely, 2^2120624413 is an apocalyptic number.

It is an amenable number.

2120624413 is a deficient number, since it is larger than the sum of its proper divisors (26843427).

2120624413 is an equidigital number, since it uses as much as digits as its factorization.

2120624413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26843426.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2120624413 is about 46050.2379255526. The cubic root of 2120624413 is about 1284.7577680847.

Adding to 2120624413 its reverse (3144260212), we get a palindrome (5264884625).

The spelling of 2120624413 in words is "two billion, one hundred twenty million, six hundred twenty-four thousand, four hundred thirteen".