3123031021112 has 8 divisors (see below), whose sum is σ = 5855683164600. Its totient is φ = 1561515510552.

The previous prime is 3123031021073. The next prime is 3123031021141. The reversal of 3123031021112 is 2111201303213.

It is a happy number.

3123031021112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×3123031021112² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195189438812 + ... + 195189438827.

It is an arithmetic number, because the mean of its divisors is an integer number (731960395575).

Almost surely, 2^{3123031021112} is an apocalyptic number.

It is an amenable number.

3123031021112 is a deficient number, since it is larger than the sum of its proper divisors (2732652143488).

3123031021112 is a wasteful number, since it uses less digits than its factorization.

3123031021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390378877645 (or 390378877641 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3123031021112 its reverse (2111201303213), we get a palindrome (5234232324325).

The spelling of 3123031021112 in words is "three trillion, one hundred twenty-three billion, thirty-one million, twenty-one thousand, one hundred twelve".