31023123201012 has 24 divisors (see below), whose sum is σ = 76197144704800. Its totient is φ = 9796775747616.

The previous prime is 31023123201011. The next prime is 31023123201019. The reversal of 31023123201012 is 21010232132013.

31023123201012 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 31023123201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023123201011) 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, 68033164687 + ... + 68033165142.

Almost surely, 2^{31023123201012} is an apocalyptic number.

It is an amenable number.

31023123201012 is an abundant number, since it is smaller than the sum of its proper divisors (45174021503788).

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

31023123201012 is a wasteful number, since it uses less digits than its factorization.

31023123201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136066329855 (or 136066329853 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31023123201012 its reverse (21010232132013), we get a palindrome (52033355333025).

The spelling of 31023123201012 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-three million, two hundred one thousand, twelve".