20340120134 has 16 divisors (see below), whose sum is σ = 30614526096. Its totient is φ = 10135303200.

The previous prime is 20340120133. The next prime is 20340120197. The reversal of 20340120134 is 43102104302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340120133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2339804 + ... + 2348480.

It is an arithmetic number, because the mean of its divisors is an integer number (1913407881).

Almost surely, 2^20340120134 is an apocalyptic number.

20340120134 is a deficient number, since it is larger than the sum of its proper divisors (10274405962).

20340120134 is a wasteful number, since it uses less digits than its factorization.

20340120134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12551.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20340120134 its reverse (43102104302), we get a palindrome (63442224436).

The spelling of 20340120134 in words is "twenty billion, three hundred forty million, one hundred twenty thousand, one hundred thirty-four".