2421345131 has 4 divisors (see below), whose sum is σ = 2423529600. Its totient is φ = 2419160664.

The previous prime is 2421345109. The next prime is 2421345149. The reversal of 2421345131 is 1315431242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2421345131 - 2¹⁴ = 2421328747 is a prime.

It is a super-2 number, since 2×2421345131² = 11725824486834814322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421345131.

It is not an unprimeable number, because it can be changed into a prime (2421345431) 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, 1090571 + ... + 1092788.

It is an arithmetic number, because the mean of its divisors is an integer number (605882400).

Almost surely, 2^2421345131 is an apocalyptic number.

2421345131 is a deficient number, since it is larger than the sum of its proper divisors (2184469).

2421345131 is a wasteful number, since it uses less digits than its factorization.

2421345131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184468.

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

The square root of 2421345131 is about 49207.1654436628. The cubic root of 2421345131 is about 1342.8233947483.

Adding to 2421345131 its reverse (1315431242), we get a palindrome (3736776373).

The spelling of 2421345131 in words is "two billion, four hundred twenty-one million, three hundred forty-five thousand, one hundred thirty-one".