20424130240312 has 16 divisors (see below), whose sum is σ = 38301647106600. Its totient is φ = 10210357678560.

The previous prime is 20424130240309. The next prime is 20424130240357. The reversal of 20424130240312 is 21304203142402.

It is a super-2 number, since 2×20424130240312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213379362 + ... + 213475057.

Almost surely, 2^{20424130240312} is an apocalyptic number.

It is an amenable number.

20424130240312 is a deficient number, since it is larger than the sum of its proper divisors (17877516866288).

20424130240312 is a wasteful number, since it uses less digits than its factorization.

20424130240312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426860406 (or 426860402 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20424130240312 its reverse (21304203142402), we get a palindrome (41728333382714).

The spelling of 20424130240312 in words is "twenty trillion, four hundred twenty-four billion, one hundred thirty million, two hundred forty thousand, three hundred twelve".