20321311031102 has 8 divisors (see below), whose sum is σ = 30501053568696. Its totient is φ = 10154293174872.

The previous prime is 20321311031051. The next prime is 20321311031123. The reversal of 20321311031102 is 20113011312302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20321311031102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3181166348 + ... + 3181172735.

It is an arithmetic number, because the mean of its divisors is an integer number (3812631696087).

Almost surely, 2^{20321311031102} is an apocalyptic number.

20321311031102 is a deficient number, since it is larger than the sum of its proper divisors (10179742537594).

20321311031102 is a wasteful number, since it uses less digits than its factorization.

20321311031102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6362340682.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20321311031102 its reverse (20113011312302), we get a palindrome (40434322343404).

The spelling of 20321311031102 in words is "twenty trillion, three hundred twenty-one billion, three hundred eleven million, thirty-one thousand, one hundred two".