2421513231 has 8 divisors (see below), whose sum is σ = 3238870704. Its totient is φ = 1609248960.

The previous prime is 2421513181. The next prime is 2421513247. The reversal of 2421513231 is 1323151242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2421513231 - 2⁷ = 2421513103 is a prime.

It is a super-2 number, since 2×2421513231² = 11727452655816118722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421513271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272190 + ... + 1274091.

It is an arithmetic number, because the mean of its divisors is an integer number (404858838).

Almost surely, 2^2421513231 is an apocalyptic number.

2421513231 is a deficient number, since it is larger than the sum of its proper divisors (817357473).

2421513231 is a wasteful number, since it uses less digits than its factorization.

2421513231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546601.

The product of its digits is 1440, while the sum is 24.

The square root of 2421513231 is about 49208.8734985876. The cubic root of 2421513231 is about 1342.8544688521.

Adding to 2421513231 its reverse (1323151242), we get a palindrome (3744664473).

The spelling of 2421513231 in words is "two billion, four hundred twenty-one million, five hundred thirteen thousand, two hundred thirty-one".