20302331132 has 6 divisors (see below), whose sum is σ = 35529079488. Its totient is φ = 10151165564.

The previous prime is 20302331131. The next prime is 20302331143. The reversal of 20302331132 is 23113320302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302331131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2537791388 + ... + 2537791395.

It is an arithmetic number, because the mean of its divisors is an integer number (5921513248).

Almost surely, 2^20302331132 is an apocalyptic number.

It is an amenable number.

20302331132 is a deficient number, since it is larger than the sum of its proper divisors (15226748356).

20302331132 is a wasteful number, since it uses less digits than its factorization.

20302331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075582787 (or 5075582785 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20302331132 its reverse (23113320302), we get a palindrome (43415651434).

The spelling of 20302331132 in words is "twenty billion, three hundred two million, three hundred thirty-one thousand, one hundred thirty-two".