20130142342 has 4 divisors (see below), whose sum is σ = 30195213516. Its totient is φ = 10065071170.

The previous prime is 20130142303. The next prime is 20130142381. The reversal of 20130142342 is 24324103102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20130142303) and next prime (20130142381).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5032535584 + ... + 5032535587.

It is an arithmetic number, because the mean of its divisors is an integer number (7548803379).

Almost surely, 2^20130142342 is an apocalyptic number.

20130142342 is a deficient number, since it is larger than the sum of its proper divisors (10065071174).

20130142342 is a wasteful number, since it uses less digits than its factorization.

20130142342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065071173.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20130142342 its reverse (24324103102), we get a palindrome (44454245444).

The spelling of 20130142342 in words is "twenty billion, one hundred thirty million, one hundred forty-two thousand, three hundred forty-two".