3123121030 has 8 divisors (see below), whose sum is σ = 5621617872. Its totient is φ = 1249248408.

The previous prime is 3123121013. The next prime is 3123121031. The reversal of 3123121030 is 301213213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3123120995 and 3123121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123121031) 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, 156156042 + ... + 156156061.

It is an arithmetic number, because the mean of its divisors is an integer number (702702234).

Almost surely, 2^3123121030 is an apocalyptic number.

3123121030 is a deficient number, since it is larger than the sum of its proper divisors (2498496842).

3123121030 is a wasteful number, since it uses less digits than its factorization.

3123121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312312110.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 3123121030 is about 55884.8908919039. The cubic root of 3123121030 is about 1461.7157894727.

Adding to 3123121030 its reverse (301213213), we get a palindrome (3424334243).

The spelling of 3123121030 in words is "three billion, one hundred twenty-three million, one hundred twenty-one thousand, thirty".