321020330010103 has 16 divisors (see below), whose sum is σ = 345494913592320. Its totient is φ = 297318214292256.

The previous prime is 321020330010101. The next prime is 321020330010209. The reversal of 321020330010103 is 301010033020123.

It is a cyclic number.

It is not a de Polignac number, because 321020330010103 - 2¹ = 321020330010101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321020330010101) 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, 201848976 + ... + 203433157.

It is an arithmetic number, because the mean of its divisors is an integer number (21593432099520).

Almost surely, 2^{321020330010103} is an apocalyptic number.

321020330010103 is a deficient number, since it is larger than the sum of its proper divisors (24474583582217).

321020330010103 is a wasteful number, since it uses less digits than its factorization.

321020330010103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405283086.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 321020330010103 its reverse (301010033020123), we get a palindrome (622030363030226).

The spelling of 321020330010103 in words is "three hundred twenty-one trillion, twenty billion, three hundred thirty million, ten thousand, one hundred three".