20134123232 has 48 divisors (see below), whose sum is σ = 40940266752. Its totient is φ = 9740976000.

The previous prime is 20134123159. The next prime is 20134123253. The reversal of 20134123232 is 23232143102.

It is a junction number, because it is equal to n+sod(n) for n = 20134123198 and 20134123207.

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, 78857 + ... + 215607.

It is an arithmetic number, because the mean of its divisors is an integer number (852922224).

Almost surely, 2^20134123232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20134123232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20470133376).

20134123232 is an abundant number, since it is smaller than the sum of its proper divisors (20806143520).

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

20134123232 is a wasteful number, since it uses less digits than its factorization.

20134123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136911 (or 136903 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20134123232 its reverse (23232143102), we get a palindrome (43366266334).

The spelling of 20134123232 in words is "twenty billion, one hundred thirty-four million, one hundred twenty-three thousand, two hundred thirty-two".