3132130220321 has 4 divisors (see below), whose sum is σ = 3132180099972. Its totient is φ = 3132080340672.

The previous prime is 3132130220291. The next prime is 3132130220327. The reversal of 3132130220321 is 1230220312313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1201294913296 + 1930835307025 = 1096036^2 + 1389545^2 .

It is a cyclic number.

It is not a de Polignac number, because 3132130220321 - 2⁶ = 3132130220257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3132130220327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24845516 + ... + 24971261.

It is an arithmetic number, because the mean of its divisors is an integer number (783045024993).

Almost surely, 2^{3132130220321} is an apocalyptic number.

It is an amenable number.

3132130220321 is a deficient number, since it is larger than the sum of its proper divisors (49879651).

3132130220321 is an equidigital number, since it uses as much as digits as its factorization.

3132130220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49879650.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 3132130220321 its reverse (1230220312313), we get a palindrome (4362350532634).

The spelling of 3132130220321 in words is "three trillion, one hundred thirty-two billion, one hundred thirty million, two hundred twenty thousand, three hundred twenty-one".