321201021020131 has 8 divisors (see below), whose sum is σ = 367166045939040. Its totient is φ = 275255787294528.

The previous prime is 321201021020129. The next prime is 321201021020171. The reversal of 321201021020131 is 131020120102123.

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

It is a cyclic number.

It is not a de Polignac number, because 321201021020131 - 2¹ = 321201021020129 is a prime.

It is a super-2 number, since 2×321201021020131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321201021020099 and 321201021020108.

It is not an unprimeable number, because it can be changed into a prime (321201021020101) 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, 4947763546 + ... + 4947828463.

It is an arithmetic number, because the mean of its divisors is an integer number (45895755742380).

Almost surely, 2^{321201021020131} is an apocalyptic number.

321201021020131 is a deficient number, since it is larger than the sum of its proper divisors (45965024918909).

321201021020131 is an equidigital number, since it uses as much as digits as its factorization.

321201021020131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9895596653.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 321201021020131 its reverse (131020120102123), we get a palindrome (452221141122254).

The spelling of 321201021020131 in words is "three hundred twenty-one trillion, two hundred one billion, twenty-one million, twenty thousand, one hundred thirty-one".