20321311122002 has 32 divisors (see below), whose sum is σ = 34711832807424. Its totient is φ = 8832044192400.

The previous prime is 20321311121999. The next prime is 20321311122011. The reversal of 20321311122002 is 20022111312302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6166388 + ... + 8869439.

It is an arithmetic number, because the mean of its divisors is an integer number (1084744775232).

Almost surely, 2^{20321311122002} is an apocalyptic number.

20321311122002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20321311122002 is a deficient number, since it is larger than the sum of its proper divisors (14390521685422).

20321311122002 is a wasteful number, since it uses less digits than its factorization.

20321311122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15038534.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20321311122002 its reverse (20022111312302), we get a palindrome (40343422434304).

The spelling of 20321311122002 in words is "twenty trillion, three hundred twenty-one billion, three hundred eleven million, one hundred twenty-two thousand, two".