320130331201021 has 8 divisors (see below), whose sum is σ = 349233321636288. Its totient is φ = 291027379608000.

The previous prime is 320130331201003. The next prime is 320130331201027. The reversal of 320130331201021 is 120102133031023.

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 320130331201021 - 2²¹ = 320130329103869 is a prime.

It is a super-2 number, since 2×320130331201021² (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 = 320130331200983 and 320130331201001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320130331201027) 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, 9107941 + ... + 26892661.

It is an arithmetic number, because the mean of its divisors is an integer number (43654165204536).

Almost surely, 2^{320130331201021} is an apocalyptic number.

It is an amenable number.

320130331201021 is a deficient number, since it is larger than the sum of its proper divisors (29102990435267).

320130331201021 is a wasteful number, since it uses less digits than its factorization.

320130331201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19421123.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 320130331201021 its reverse (120102133031023), we get a palindrome (440232464232044).

The spelling of 320130331201021 in words is "three hundred twenty trillion, one hundred thirty billion, three hundred thirty-one million, two hundred one thousand, twenty-one".