20430240011430 has 64 divisors (see below), whose sum is σ = 50077040099328. Its totient is φ = 5332018078080.

The previous prime is 20430240011399. The next prime is 20430240011453. The reversal of 20430240011430 is 3411004203402.

It is a self number, because there is not a number n which added to its sum of digits gives 20430240011430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66869115 + ... + 67173945.

It is an arithmetic number, because the mean of its divisors is an integer number (782453751552).

Almost surely, 2^{20430240011430} is an apocalyptic number.

20430240011430 is an abundant number, since it is smaller than the sum of its proper divisors (29646800087898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20430240011430 is a wasteful number, since it uses less digits than its factorization.

20430240011430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352421.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20430240011430 its reverse (3411004203402), we get a palindrome (23841244214832).

The spelling of 20430240011430 in words is "twenty trillion, four hundred thirty billion, two hundred forty million, eleven thousand, four hundred thirty".