321323112031 has 16 divisors (see below), whose sum is σ = 331558492320. Its totient is φ = 311262756480.

The previous prime is 321323112029. The next prime is 321323112043. The reversal of 321323112031 is 130211323123.

It is a cyclic number.

It is not a de Polignac number, because 321323112031 - 2¹ = 321323112029 is a prime.

It is a super-2 number, since 2×321323112031² (a number of 24 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 = 321323111993 and 321323112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321323112431) 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, 1536621 + ... + 1733161.

It is an arithmetic number, because the mean of its divisors is an integer number (20722405770).

Almost surely, 2^321323112031 is an apocalyptic number.

321323112031 is a deficient number, since it is larger than the sum of its proper divisors (10235380289).

321323112031 is a wasteful number, since it uses less digits than its factorization.

321323112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196986.

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

Adding to 321323112031 its reverse (130211323123), we get a palindrome (451534435154).

The spelling of 321323112031 in words is "three hundred twenty-one billion, three hundred twenty-three million, one hundred twelve thousand, thirty-one".