10133444421 has 24 divisors (see below), whose sum is σ = 15059804760. Its totient is φ = 6562022400.

The previous prime is 10133444417. The next prime is 10133444437. The reversal of 10133444421 is 12444433101.

It can be written as a sum of positive squares in 4 ways, for example, as 721728225 + 9411716196 = 26865^2 + 97014^2 .

It is not a de Polignac number, because 10133444421 - 2² = 10133444417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10133444521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24541 + ... + 144461.

It is an arithmetic number, because the mean of its divisors is an integer number (627491865).

Almost surely, 2^10133444421 is an apocalyptic number.

It is an amenable number.

10133444421 is a deficient number, since it is larger than the sum of its proper divisors (4926360339).

10133444421 is a wasteful number, since it uses less digits than its factorization.

10133444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120197 (or 120194 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 10133444421 its reverse (12444433101), we get a palindrome (22577877522).

The spelling of 10133444421 in words is "ten billion, one hundred thirty-three million, four hundred forty-four thousand, four hundred twenty-one".