3123101121212 has 12 divisors (see below), whose sum is σ = 5488294859040. Its totient is φ = 1555016875776.

The previous prime is 3123101121191. The next prime is 3123101121241. The reversal of 3123101121212 is 2121211013213.

It is a super-2 number, since 2×3123101121212² (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 in 3 ways as a sum of consecutive naturals, for example, 1633420133 + ... + 1633422044.

It is an arithmetic number, because the mean of its divisors is an integer number (457357904920).

Almost surely, 2^{3123101121212} is an apocalyptic number.

It is an amenable number.

3123101121212 is a deficient number, since it is larger than the sum of its proper divisors (2365193737828).

3123101121212 is a wasteful number, since it uses less digits than its factorization.

3123101121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266842420 (or 3266842418 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 3123101121212 its reverse (2121211013213), we get a palindrome (5244312134425).

The spelling of 3123101121212 in words is "three trillion, one hundred twenty-three billion, one hundred one million, one hundred twenty-one thousand, two hundred twelve".