31212102122123 has 8 divisors (see below), whose sum is σ = 33614233869216. Its totient is φ = 28810141920000.

The previous prime is 31212102122099. The next prime is 31212102122129. The reversal of 31212102122123 is 32122120121213.

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

It is a cyclic number.

It is not a de Polignac number, because 31212102122123 - 2¹⁰ = 31212102121099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31212102122129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42508223 + ... + 43236248.

It is an arithmetic number, because the mean of its divisors is an integer number (4201779233652).

Almost surely, 2^{31212102122123} is an apocalyptic number.

31212102122123 is a deficient number, since it is larger than the sum of its proper divisors (2402131747093).

31212102122123 is a wasteful number, since it uses less digits than its factorization.

31212102122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85772485.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31212102122123 its reverse (32122120121213), we get a palindrome (63334222243336).

The spelling of 31212102122123 in words is "thirty-one trillion, two hundred twelve billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-three".