20134502312 has 64 divisors (see below), whose sum is σ = 41746320000. Its totient is φ = 9061265664.

The previous prime is 20134502239. The next prime is 20134502317. The reversal of 20134502312 is 21320543102.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (20134502317) 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, 501578 + ... + 540230.

It is an arithmetic number, because the mean of its divisors is an integer number (652286250).

Almost surely, 2^20134502312 is an apocalyptic number.

It is an amenable number.

20134502312 is an abundant number, since it is smaller than the sum of its proper divisors (21611817688).

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

20134502312 is a wasteful number, since it uses less digits than its factorization.

20134502312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38850 (or 38846 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 20134502312 in words is "twenty billion, one hundred thirty-four million, five hundred two thousand, three hundred twelve".