20135207134 has 16 divisors (see below), whose sum is σ = 34665647328. Its totient is φ = 8592337152.

The previous prime is 20135207107. The next prime is 20135207137. The reversal of 20135207134 is 43170253102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135207137) 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, 3083067 + ... + 3089590.

It is an arithmetic number, because the mean of its divisors is an integer number (2166602958).

Almost surely, 2^20135207134 is an apocalyptic number.

20135207134 is a deficient number, since it is larger than the sum of its proper divisors (14530440194).

20135207134 is a wasteful number, since it uses less digits than its factorization.

20135207134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172899.

The product of its (nonzero) digits is 5040, while the sum is 28.

The spelling of 20135207134 in words is "twenty billion, one hundred thirty-five million, two hundred seven thousand, one hundred thirty-four".