3120321123 has 40 divisors (see below), whose sum is σ = 4725650160. Its totient is φ = 2051619840.

The previous prime is 3120321121. The next prime is 3120321133. The reversal of 3120321123 is 3211230213.

It is not a de Polignac number, because 3120321123 - 2¹ = 3120321121 is a prime.

It is a super-4 number, since 4×3120321123⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3120321096 and 3120321105.

It is not an unprimeable number, because it can be changed into a prime (3120321121) 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, 3213028 + ... + 3213998.

It is an arithmetic number, because the mean of its divisors is an integer number (118141254).

Almost surely, 2^3120321123 is an apocalyptic number.

3120321123 is a deficient number, since it is larger than the sum of its proper divisors (1605329037).

3120321123 is an equidigital number, since it uses as much as digits as its factorization.

3120321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1480 counting only the distinct ones).

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

The square root of 3120321123 is about 55859.8346130742. The cubic root of 3120321123 is about 1461.2788449462.

Adding to 3120321123 its reverse (3211230213), we get a palindrome (6331551336).

It can be divided in two parts, 31203 and 21123, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 3120321123 in words is "three billion, one hundred twenty million, three hundred twenty-one thousand, one hundred twenty-three".