21433112120203 has 8 divisors (see below), whose sum is σ = 24495806094080. Its totient is φ = 18370623349800.

The previous prime is 21433112120177. The next prime is 21433112120227. The reversal of 21433112120203 is 30202121133412.

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 21433112120203 - 2⁹ = 21433112119691 is a prime.

It is a super-2 number, since 2×21433112120203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21433112120263) 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, 51076983 + ... + 51494896.

It is an arithmetic number, because the mean of its divisors is an integer number (3061975761760).

Almost surely, 2^{21433112120203} is an apocalyptic number.

21433112120203 is a deficient number, since it is larger than the sum of its proper divisors (3062693973877).

21433112120203 is a wasteful number, since it uses less digits than its factorization.

21433112120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102601737.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21433112120203 its reverse (30202121133412), we get a palindrome (51635233253615).

The spelling of 21433112120203 in words is "twenty-one trillion, four hundred thirty-three billion, one hundred twelve million, one hundred twenty thousand, two hundred three".