20321144102 has 8 divisors (see below), whose sum is σ = 34836247056. Its totient is φ = 8709061752.

The previous prime is 20321144099. The next prime is 20321144113. The reversal of 20321144102 is 20144112302.

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

It is a super-2 number, since 2×20321144102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 725755133 + ... + 725755160.

It is an arithmetic number, because the mean of its divisors is an integer number (4354530882).

Almost surely, 2^20321144102 is an apocalyptic number.

20321144102 is a deficient number, since it is larger than the sum of its proper divisors (14515102954).

20321144102 is a wasteful number, since it uses less digits than its factorization.

20321144102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451510302.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20321144102 its reverse (20144112302), we get a palindrome (40465256404).

The spelling of 20321144102 in words is "twenty billion, three hundred twenty-one million, one hundred forty-four thousand, one hundred two".