20123231133033 has 64 divisors (see below), whose sum is σ = 34254929264640. Its totient is φ = 11436959073600.

The previous prime is 20123231133029. The next prime is 20123231133067. The reversal of 20123231133033 is 33033113232102.

20123231133033 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 323 + 1 + 1 + 330 + 3 + 3 = 666.

It is not a de Polignac number, because 20123231133033 - 2² = 20123231133029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20123231132988 and 20123231133006.

It is not an unprimeable number, because it can be changed into a prime (20123231133833) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 244746216 + ... + 244828422.

It is an arithmetic number, because the mean of its divisors is an integer number (535233269760).

Almost surely, 2^{20123231133033} is an apocalyptic number.

It is an amenable number.

20123231133033 is a deficient number, since it is larger than the sum of its proper divisors (14131698131607).

20123231133033 is a wasteful number, since it uses less digits than its factorization.

20123231133033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89195 (or 89189 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 20123231133033 its reverse (33033113232102), we get a palindrome (53156344365135).

The spelling of 20123231133033 in words is "twenty trillion, one hundred twenty-three billion, two hundred thirty-one million, one hundred thirty-three thousand, thirty-three".