20123134004 has 12 divisors (see below), whose sum is σ = 37068931200. Its totient is φ = 9532010808.

The previous prime is 20123134001. The next prime is 20123134037. The reversal of 20123134004 is 40043132102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123134001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132388964 + ... + 132389115.

It is an arithmetic number, because the mean of its divisors is an integer number (3089077600).

Almost surely, 2^20123134004 is an apocalyptic number.

It is an amenable number.

20123134004 is a deficient number, since it is larger than the sum of its proper divisors (16945797196).

20123134004 is a wasteful number, since it uses less digits than its factorization.

20123134004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264778102 (or 264778100 counting only the distinct ones).

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

Adding to 20123134004 its reverse (40043132102), we get a palindrome (60166266106).

The spelling of 20123134004 in words is "twenty billion, one hundred twenty-three million, one hundred thirty-four thousand, four".