3131301200221 has 8 divisors (see below), whose sum is σ = 3182719316984. Its totient is φ = 3079885835520.

The previous prime is 3131301200219. The next prime is 3131301200227. The reversal of 3131301200221 is 1220021031313.

It can be written as a sum of positive squares in 4 ways, for example, as 29778679225 + 3101522520996 = 172565^2 + 1761114^2 .

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 3131301200221 - 2¹ = 3131301200219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131301200227) 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, 1672201 + ... + 3009793.

It is an arithmetic number, because the mean of its divisors is an integer number (397839914623).

Almost surely, 2^{3131301200221} is an apocalyptic number.

It is an amenable number.

3131301200221 is a deficient number, since it is larger than the sum of its proper divisors (51418116763).

3131301200221 is a wasteful number, since it uses less digits than its factorization.

3131301200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376031.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 3131301200221 its reverse (1220021031313), we get a palindrome (4351322231534).

The spelling of 3131301200221 in words is "three trillion, one hundred thirty-one billion, three hundred one million, two hundred thousand, two hundred twenty-one".