2315421243 has 12 divisors (see below), whose sum is σ = 3345158128. Its totient is φ = 1543309200.

The previous prime is 2315421221. The next prime is 2315421259. The reversal of 2315421243 is 3421245132.

2315421243 is a `hidden beast` number, since 231 + 5 + 421 + 2 + 4 + 3 = 666.

It is not a de Polignac number, because 2315421243 - 2¹⁴ = 2315404859 is a prime.

It is a super-2 number, since 2×2315421243² = 10722351065071330098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315421343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28746 + ... + 73872.

Almost surely, 2^2315421243 is an apocalyptic number.

2315421243 is a deficient number, since it is larger than the sum of its proper divisors (1029736885).

2315421243 is a wasteful number, since it uses less digits than its factorization.

2315421243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50834 (or 50831 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2315421243 is about 48118.8242063332. The cubic root of 2315421243 is about 1322.9497172560.

Adding to 2315421243 its reverse (3421245132), we get a palindrome (5736666375).

The spelling of 2315421243 in words is "two billion, three hundred fifteen million, four hundred twenty-one thousand, two hundred forty-three".