20134140234 has 32 divisors (see below), whose sum is σ = 43392996864. Its totient is φ = 6191240640.

The previous prime is 20134140211. The next prime is 20134140239. The reversal of 20134140234 is 43204143102.

It is not an unprimeable number, because it can be changed into a prime (20134140239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45799 + ... + 205829.

It is an arithmetic number, because the mean of its divisors is an integer number (1356031152).

Almost surely, 2^20134140234 is an apocalyptic number.

20134140234 is an abundant number, since it is smaller than the sum of its proper divisors (23258856630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20134140234 is a wasteful number, since it uses less digits than its factorization.

20134140234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161662.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20134140234 its reverse (43204143102), we get a palindrome (63338283336).

The spelling of 20134140234 in words is "twenty billion, one hundred thirty-four million, one hundred forty thousand, two hundred thirty-four".