220131203033321 has 8 divisors (see below), whose sum is σ = 225921735994824. Its totient is φ = 214401303925120.

The previous prime is 220131203033281. The next prime is 220131203033333. The reversal of 220131203033321 is 123330302131022.

It can be written as a sum of positive squares in 4 ways, for example, as 27045865918096 + 193085337115225 = 5200564^2 + 13895515^2 .

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 220131203033321 - 2¹⁰ = 220131203032297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220131203033221) 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, 15158455970 + ... + 15158470491.

It is an arithmetic number, because the mean of its divisors is an integer number (28240216999353).

Almost surely, 2^{220131203033321} is an apocalyptic number.

It is an amenable number.

220131203033321 is a deficient number, since it is larger than the sum of its proper divisors (5790532961503).

220131203033321 is a wasteful number, since it uses less digits than its factorization.

220131203033321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30316926651.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 220131203033321 its reverse (123330302131022), we get a palindrome (343461505164343).

The spelling of 220131203033321 in words is "two hundred twenty trillion, one hundred thirty-one billion, two hundred three million, thirty-three thousand, three hundred twenty-one".