2431320653 has 4 divisors (see below), whose sum is σ = 2497032060. Its totient is φ = 2365609248.

The previous prime is 2431320643. The next prime is 2431320659. The reversal of 2431320653 is 3560231342.

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 1918615204 + 512705449 = 43802^2 + 22643^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431320653 - 2¹⁶ = 2431255117 is a prime.

It is a super-2 number, since 2×2431320653² = 11822640235408692818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431320659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32855648 + ... + 32855721.

It is an arithmetic number, because the mean of its divisors is an integer number (624258015).

Almost surely, 2^2431320653 is an apocalyptic number.

It is an amenable number.

2431320653 is a deficient number, since it is larger than the sum of its proper divisors (65711407).

2431320653 is an equidigital number, since it uses as much as digits as its factorization.

2431320653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65711406.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 2431320653 is about 49308.4237529451. The cubic root of 2431320653 is about 1344.6649346163.

Adding to 2431320653 its reverse (3560231342), we get a palindrome (5991551995).

The spelling of 2431320653 in words is "two billion, four hundred thirty-one million, three hundred twenty thousand, six hundred fifty-three".