20142344542 has 8 divisors (see below), whose sum is σ = 30552994800. Its totient is φ = 9958012944.

The previous prime is 20142344539. The next prime is 20142344587. The reversal of 20142344542 is 24544324102.

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

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, 56579442 + ... + 56579797.

It is an arithmetic number, because the mean of its divisors is an integer number (3819124350).

Almost surely, 2^20142344542 is an apocalyptic number.

20142344542 is a deficient number, since it is larger than the sum of its proper divisors (10410650258).

20142344542 is a wasteful number, since it uses less digits than its factorization.

20142344542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113159330.

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 20142344542 its reverse (24544324102), we get a palindrome (44686668644).

The spelling of 20142344542 in words is "twenty billion, one hundred forty-two million, three hundred forty-four thousand, five hundred forty-two".