320012103021 has 16 divisors (see below), whose sum is σ = 459877904640. Its totient is φ = 196770519360.

The previous prime is 320012103013. The next prime is 320012103029. The reversal of 320012103021 is 120301210023.

It is an interprime number because it is at equal distance from previous prime (320012103013) and next prime (320012103029).

It is not a de Polignac number, because 320012103021 - 2³ = 320012103013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320012103029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3284826 + ... + 3380843.

It is an arithmetic number, because the mean of its divisors is an integer number (28742369040).

Almost surely, 2^320012103021 is an apocalyptic number.

It is an amenable number.

320012103021 is a deficient number, since it is larger than the sum of its proper divisors (139865801619).

320012103021 is a wasteful number, since it uses less digits than its factorization.

320012103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666916.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 320012103021 its reverse (120301210023), we get a palindrome (440313313044).

The spelling of 320012103021 in words is "three hundred twenty billion, twelve million, one hundred three thousand, twenty-one".