2120126430 has 64 divisors (see below), whose sum is σ = 5343625728. Its totient is φ = 537313920.

The previous prime is 2120126429. The next prime is 2120126467. The reversal of 2120126430 is 346210212.

It is a junction number, because it is equal to n+sod(n) for n = 2120126397 and 2120126406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98545 + ... + 118115.

It is an arithmetic number, because the mean of its divisors is an integer number (83494152).

Almost surely, 2^2120126430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120126430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2671812864).

2120126430 is an abundant number, since it is smaller than the sum of its proper divisors (3223499298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120126430 is a wasteful number, since it uses less digits than its factorization.

2120126430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19761.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2120126430 is about 46044.8306544828. The cubic root of 2120126430 is about 1284.6571943087.

Adding to 2120126430 its reverse (346210212), we get a palindrome (2466336642).

The spelling of 2120126430 in words is "two billion, one hundred twenty million, one hundred twenty-six thousand, four hundred thirty".