2306512421 has 4 divisors (see below), whose sum is σ = 2309407212. Its totient is φ = 2303617632.

The previous prime is 2306512399. The next prime is 2306512433. The reversal of 2306512421 is 1242156032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1683460900 + 623051521 = 41030^2 + 24961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2306512421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2306512321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1446200 + ... + 1447793.

It is an arithmetic number, because the mean of its divisors is an integer number (577351803).

Almost surely, 2^2306512421 is an apocalyptic number.

It is an amenable number.

2306512421 is a deficient number, since it is larger than the sum of its proper divisors (2894791).

2306512421 is an equidigital number, since it uses as much as digits as its factorization.

2306512421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894790.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2306512421 is about 48026.1639213460. The cubic root of 2306512421 is about 1321.2508079931.

Adding to 2306512421 its reverse (1242156032), we get a palindrome (3548668453).

The spelling of 2306512421 in words is "two billion, three hundred six million, five hundred twelve thousand, four hundred twenty-one".