2120005430 has 32 divisors (see below), whose sum is σ = 3858630048. Its totient is φ = 838566400.

The previous prime is 2120005361. The next prime is 2120005441. The reversal of 2120005430 is 345000212.

It is a junction number, because it is equal to n+sod(n) for n = 2120005399 and 2120005408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 552920 + ... + 556740.

It is an arithmetic number, because the mean of its divisors is an integer number (120582189).

Almost surely, 2^2120005430 is an apocalyptic number.

2120005430 is a deficient number, since it is larger than the sum of its proper divisors (1738624618).

2120005430 is a wasteful number, since it uses less digits than its factorization.

2120005430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2120005430 is about 46043.5166988796. The cubic root of 2120005430 is about 1284.6327544961.

Adding to 2120005430 its reverse (345000212), we get a palindrome (2465005642).

The spelling of 2120005430 in words is "two billion, one hundred twenty million, five thousand, four hundred thirty".