20042343134 has 16 divisors (see below), whose sum is σ = 33211710720. Its totient is φ = 8994836760.

The previous prime is 20042343109. The next prime is 20042343143. The reversal of 20042343134 is 43134324002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5764184 + ... + 5767659.

It is an arithmetic number, because the mean of its divisors is an integer number (2075731920).

Almost surely, 2^20042343134 is an apocalyptic number.

20042343134 is a deficient number, since it is larger than the sum of its proper divisors (13169367586).

20042343134 is a wasteful number, since it uses less digits than its factorization.

20042343134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531935.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20042343134 its reverse (43134324002), we get a palindrome (63176667136).

The spelling of 20042343134 in words is "twenty billion, forty-two million, three hundred forty-three thousand, one hundred thirty-four".