20112400033 has 8 divisors (see below), whose sum is σ = 22134967776. Its totient is φ = 18122193600.

The previous prime is 20112400031. The next prime is 20112400037. The reversal of 20112400033 is 33000421102.

It is a happy number.

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 20112400033 - 2¹ = 20112400031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112400031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8089023 + ... + 8091508.

It is an arithmetic number, because the mean of its divisors is an integer number (2766870972).

Almost surely, 2^20112400033 is an apocalyptic number.

It is an amenable number.

20112400033 is a deficient number, since it is larger than the sum of its proper divisors (2022567743).

20112400033 is a wasteful number, since it uses less digits than its factorization.

20112400033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16180655.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20112400033 its reverse (33000421102), we get a palindrome (53112821135).

The spelling of 20112400033 in words is "twenty billion, one hundred twelve million, four hundred thousand, thirty-three".