21033233130203 has 16 divisors (see below), whose sum is σ = 25473715006464. Its totient is φ = 16953496110720.

The previous prime is 21033233130139. The next prime is 21033233130227. The reversal of 21033233130203 is 30203133233012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21033233130203 - 2⁶ = 21033233130139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21033233130253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75330275 + ... + 75608972.

It is an arithmetic number, because the mean of its divisors is an integer number (1592107187904).

Almost surely, 2^{21033233130203} is an apocalyptic number.

21033233130203 is a deficient number, since it is larger than the sum of its proper divisors (4440481876261).

21033233130203 is a wasteful number, since it uses less digits than its factorization.

21033233130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150940442.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21033233130203 its reverse (30203133233012), we get a palindrome (51236366363215).

The spelling of 21033233130203 in words is "twenty-one trillion, thirty-three billion, two hundred thirty-three million, one hundred thirty thousand, two hundred three".