20312055332 has 6 divisors (see below), whose sum is σ = 35546096838. Its totient is φ = 10156027664.

The previous prime is 20312055307. The next prime is 20312055371. The reversal of 20312055332 is 23355021302.

It can be written as a sum of positive squares in only one way, i.e., 18672129316 + 1639926016 = 136646^2 + 40496^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2539006913 + ... + 2539006920.

It is an arithmetic number, because the mean of its divisors is an integer number (5924349473).

Almost surely, 2^20312055332 is an apocalyptic number.

It is an amenable number.

20312055332 is a deficient number, since it is larger than the sum of its proper divisors (15234041506).

20312055332 is a wasteful number, since it uses less digits than its factorization.

20312055332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078013837 (or 5078013835 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 20312055332 its reverse (23355021302), we get a palindrome (43667076634).

The spelling of 20312055332 in words is "twenty billion, three hundred twelve million, fifty-five thousand, three hundred thirty-two".