20320034132 has 24 divisors (see below), whose sum is σ = 36953548800. Its totient is φ = 9766277280.

The previous prime is 20320034131. The next prime is 20320034167. The reversal of 20320034132 is 23143002302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320034131) 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, 531428 + ... + 568379.

It is an arithmetic number, because the mean of its divisors is an integer number (1539731200).

Almost surely, 2^20320034132 is an apocalyptic number.

It is an amenable number.

20320034132 is a deficient number, since it is larger than the sum of its proper divisors (16633514668).

20320034132 is a wasteful number, since it uses less digits than its factorization.

20320034132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099991 (or 1099989 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20320034132 its reverse (23143002302), we get a palindrome (43463036434).

The spelling of 20320034132 in words is "twenty billion, three hundred twenty million, thirty-four thousand, one hundred thirty-two".