10433431221 has 32 divisors (see below), whose sum is σ = 14879462400. Its totient is φ = 6484147200.

The previous prime is 10433431213. The next prime is 10433431249. The reversal of 10433431221 is 12213433401.

It is a happy number.

It is not a de Polignac number, because 10433431221 - 2³ = 10433431213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10433431191 and 10433431200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10433431271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 915285 + ... + 926613.

It is an arithmetic number, because the mean of its divisors is an integer number (464983200).

Almost surely, 2^10433431221 is an apocalyptic number.

It is an amenable number.

10433431221 is a deficient number, since it is larger than the sum of its proper divisors (4446031179).

10433431221 is a wasteful number, since it uses less digits than its factorization.

10433431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11609.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 10433431221 its reverse (12213433401), we get a palindrome (22646864622).

The spelling of 10433431221 in words is "ten billion, four hundred thirty-three million, four hundred thirty-one thousand, two hundred twenty-one".