2345420121 has 16 divisors (see below), whose sum is σ = 3503725248. Its totient is φ = 1383048000.

The previous prime is 2345420111. The next prime is 2345420123. The reversal of 2345420121 is 1210245432.

It is not a de Polignac number, because 2345420121 - 2¹⁸ = 2345157977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2345420091 and 2345420100.

It is not an unprimeable number, because it can be changed into a prime (2345420123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959230 + ... + 961671.

It is an arithmetic number, because the mean of its divisors is an integer number (218982828).

Almost surely, 2^2345420121 is an apocalyptic number.

It is an amenable number.

2345420121 is a deficient number, since it is larger than the sum of its proper divisors (1158305127).

2345420121 is a wasteful number, since it uses less digits than its factorization.

2345420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920952.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2345420121 is about 48429.5376913718. The cubic root of 2345420121 is about 1328.6386509452.

Adding to 2345420121 its reverse (1210245432), we get a palindrome (3555665553).

The spelling of 2345420121 in words is "two billion, three hundred forty-five million, four hundred twenty thousand, one hundred twenty-one".