2124720355 has 8 divisors (see below), whose sum is σ = 2572228512. Its totient is φ = 1684733568.

The previous prime is 2124720349. The next prime is 2124720361. The reversal of 2124720355 is 5530274212.

It is an interprime number because it is at equal distance from previous prime (2124720349) and next prime (2124720361).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2124720355 - 2⁹ = 2124719843 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1879719 + ... + 1880848.

It is an arithmetic number, because the mean of its divisors is an integer number (321528564).

Almost surely, 2^2124720355 is an apocalyptic number.

2124720355 is a deficient number, since it is larger than the sum of its proper divisors (447508157).

2124720355 is a wasteful number, since it uses less digits than its factorization.

2124720355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760685.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 2124720355 is about 46094.6890107743. The cubic root of 2124720355 is about 1285.5843970872.

Adding to 2124720355 its reverse (5530274212), we get a palindrome (7654994567).

The spelling of 2124720355 in words is "two billion, one hundred twenty-four million, seven hundred twenty thousand, three hundred fifty-five".