3121112310030 has 384 divisors, whose sum is σ = 9939446060544. Its totient is φ = 669310387200.

The previous prime is 3121112310013. The next prime is 3121112310053. The reversal of 3121112310030 is 300132111213.

3121112310030 is a `hidden beast` number, since 312 + 1 + 1 + 12 + 310 + 0 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3121112309985 and 3121112310012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 29277525 + ... + 29383935.

It is an arithmetic number, because the mean of its divisors is an integer number (25883974116).

Almost surely, 2^{3121112310030} is an apocalyptic number.

3121112310030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121112310030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4969723030272).

3121112310030 is an abundant number, since it is smaller than the sum of its proper divisors (6818333750514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121112310030 is a wasteful number, since it uses less digits than its factorization.

3121112310030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106544 (or 106541 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 3121112310030 its reverse (300132111213), we get a palindrome (3421244421243).

The spelling of 3121112310030 in words is "three trillion, one hundred twenty-one billion, one hundred twelve million, three hundred ten thousand, thirty".