20430241142 has 8 divisors (see below), whose sum is σ = 31977768816. Its totient is φ = 9770984872.

The previous prime is 20430241127. The next prime is 20430241163. The reversal of 20430241142 is 24114203402.

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

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 222067793 + ... + 222067884.

It is an arithmetic number, because the mean of its divisors is an integer number (3997221102).

Almost surely, 2^20430241142 is an apocalyptic number.

20430241142 is a deficient number, since it is larger than the sum of its proper divisors (11547527674).

20430241142 is a wasteful number, since it uses less digits than its factorization.

20430241142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444135702.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20430241142 its reverse (24114203402), we get a palindrome (44544444544).

The spelling of 20430241142 in words is "twenty billion, four hundred thirty million, two hundred forty-one thousand, one hundred forty-two".