20302404142 has 8 divisors (see below), whose sum is σ = 30467046456. Its totient is φ = 10146721992.

The previous prime is 20302404131. The next prime is 20302404167. The reversal of 20302404142 is 24140420302.

It is a happy number.

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

It is a super-2 number, since 2×20302404142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234373 + ... + 2243440.

It is an arithmetic number, because the mean of its divisors is an integer number (3808380807).

Almost surely, 2^20302404142 is an apocalyptic number.

20302404142 is a deficient number, since it is larger than the sum of its proper divisors (10164642314).

20302404142 is a wasteful number, since it uses less digits than its factorization.

20302404142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480082.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20302404142 its reverse (24140420302), we get a palindrome (44442824444).

The spelling of 20302404142 in words is "twenty billion, three hundred two million, four hundred four thousand, one hundred forty-two".