321012350403 has 16 divisors (see below), whose sum is σ = 432390514176. Its totient is φ = 211822546400.

The previous prime is 321012350369. The next prime is 321012350447. The reversal of 321012350403 is 304053210123.

It is a cyclic number.

It is not a de Polignac number, because 321012350403 - 2¹⁸ = 321012088259 is a prime.

It is a super-2 number, since 2×321012350403² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321022350403) 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, 805126 + ... + 1135892.

It is an arithmetic number, because the mean of its divisors is an integer number (27024407136).

Almost surely, 2^321012350403 is an apocalyptic number.

321012350403 is a deficient number, since it is larger than the sum of its proper divisors (111378163773).

321012350403 is a wasteful number, since it uses less digits than its factorization.

321012350403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334074.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 321012350403 its reverse (304053210123), we get a palindrome (625065560526).

The spelling of 321012350403 in words is "three hundred twenty-one billion, twelve million, three hundred fifty thousand, four hundred three".