321230011031 has 4 divisors (see below), whose sum is σ = 321240502872. Its totient is φ = 321219519192.

The previous prime is 321230011007. The next prime is 321230011033. The reversal of 321230011031 is 130110032123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130110032123 = 461 ⋅282234343.

It is a cyclic number.

It is not a de Polignac number, because 321230011031 - 2³⁴ = 304050141847 is a prime.

It is a super-2 number, since 2×321230011031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321230011033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5199860 + ... + 5261273.

It is an arithmetic number, because the mean of its divisors is an integer number (80310125718).

Almost surely, 2^321230011031 is an apocalyptic number.

321230011031 is a deficient number, since it is larger than the sum of its proper divisors (10491841).

321230011031 is a wasteful number, since it uses less digits than its factorization.

321230011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10491840.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 321230011031 its reverse (130110032123), we get a palindrome (451340043154).

The spelling of 321230011031 in words is "three hundred twenty-one billion, two hundred thirty million, eleven thousand, thirty-one".