20123444410312 has 16 divisors (see below), whose sum is σ = 39950955814860. Its totient is φ = 9469856193024.

The previous prime is 20123444410301. The next prime is 20123444410313. The reversal of 20123444410312 is 21301444432102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18192050465796 + 1931393944516 = 4265214^2 + 1389746^2 .

It is not an unprimeable number, because it can be changed into a prime (20123444410313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73983251373 + ... + 73983251644.

Almost surely, 2^{20123444410312} is an apocalyptic number.

It is an amenable number.

20123444410312 is a deficient number, since it is larger than the sum of its proper divisors (19827511404548).

20123444410312 is a wasteful number, since it uses less digits than its factorization.

20123444410312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147966503040 (or 147966503036 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 20123444410312 its reverse (21301444432102), we get a palindrome (41424888842414).

The spelling of 20123444410312 in words is "twenty trillion, one hundred twenty-three billion, four hundred forty-four million, four hundred ten thousand, three hundred twelve".