2120343545 has 8 divisors (see below), whose sum is σ = 2603584896. Its totient is φ = 1656826416.

The previous prime is 2120343539. The next prime is 2120343553. The reversal of 2120343545 is 5453430212.

It is a happy number.

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 2120343545 - 2⁴ = 2120343529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4930817 + ... + 4931246.

It is an arithmetic number, because the mean of its divisors is an integer number (325448112).

Almost surely, 2^2120343545 is an apocalyptic number.

It is an amenable number.

2120343545 is a deficient number, since it is larger than the sum of its proper divisors (483241351).

2120343545 is an equidigital number, since it uses as much as digits as its factorization.

2120343545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862111.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2120343545 is about 46047.1882420632. The cubic root of 2120343545 is about 1284.7010452826.

Adding to 2120343545 its reverse (5453430212), we get a palindrome (7573773757).

The spelling of 2120343545 in words is "two billion, one hundred twenty million, three hundred forty-three thousand, five hundred forty-five".