321113331403 has 2 divisors, whose sum is σ = 321113331404. Its totient is φ = 321113331402.

The previous prime is 321113331397. The next prime is 321113331433. The reversal of 321113331403 is 304133311123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321113331403 - 2²⁵ = 321079776971 is a prime.

It is a super-3 number, since 3×321113331403³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (321113331433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160556665701 + 160556665702.

It is an arithmetic number, because the mean of its divisors is an integer number (160556665702).

Almost surely, 2^321113331403 is an apocalyptic number.

321113331403 is a deficient number, since it is larger than the sum of its proper divisors (1).

321113331403 is an equidigital number, since it uses as much as digits as its factorization.

321113331403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 321113331403 its reverse (304133311123), we get a palindrome (625246642526).

The spelling of 321113331403 in words is "three hundred twenty-one billion, one hundred thirteen million, three hundred thirty-one thousand, four hundred three".