21433030401 has 8 divisors (see below), whose sum is σ = 29819868480. Its totient is φ = 13667439632.

The previous prime is 21433030393. The next prime is 21433030439. The reversal of 21433030401 is 10403033412.

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 21433030401 - 2³ = 21433030393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21433030471) 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, 155311746 + ... + 155311883.

It is an arithmetic number, because the mean of its divisors is an integer number (3727483560).

Almost surely, 2^21433030401 is an apocalyptic number.

It is an amenable number.

21433030401 is a deficient number, since it is larger than the sum of its proper divisors (8386838079).

21433030401 is a wasteful number, since it uses less digits than its factorization.

21433030401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310623655.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21433030401 its reverse (10403033412), we get a palindrome (31836063813).

The spelling of 21433030401 in words is "twenty-one billion, four hundred thirty-three million, thirty thousand, four hundred one".