12330221031 has 40 divisors (see below), whose sum is σ = 18747437984. Its totient is φ = 8074054080.

The previous prime is 12330221017. The next prime is 12330221039. The reversal of 12330221031 is 13012203321.

12330221031 is a `hidden beast` number, since 123 + 302 + 210 + 31 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-12330221031 is a prime.

It is a super-2 number, since 2×12330221031² (a number of 21 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 = 12330220995 and 12330221013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12330221039) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4924926 + ... + 4927428.

Almost surely, 2^12330221031 is an apocalyptic number.

12330221031 is a deficient number, since it is larger than the sum of its proper divisors (6417216953).

12330221031 is an equidigital number, since it uses as much as digits as its factorization.

12330221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573 (or 3564 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12330221031 its reverse (13012203321), we get a palindrome (25342424352).

The spelling of 12330221031 in words is "twelve billion, three hundred thirty million, two hundred twenty-one thousand, thirty-one".