20202101321 has 8 divisors (see below), whose sum is σ = 20648075904. Its totient is φ = 19756799440.

The previous prime is 20202101299. The next prime is 20202101393. The reversal of 20202101321 is 12310120202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202101321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202101296 and 20202101305.

It is not an unprimeable number, because it can be changed into a prime (20202121321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107210 + ... + 227811.

It is an arithmetic number, because the mean of its divisors is an integer number (2581009488).

Almost surely, 2^20202101321 is an apocalyptic number.

It is an amenable number.

20202101321 is a deficient number, since it is larger than the sum of its proper divisors (445974583).

20202101321 is a wasteful number, since it uses less digits than its factorization.

20202101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336351.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20202101321 its reverse (12310120202), we get a palindrome (32512221523).

The spelling of 20202101321 in words is "twenty billion, two hundred two million, one hundred one thousand, three hundred twenty-one".