21235050433 has 8 divisors (see below), whose sum is σ = 21531384000. Its totient is φ = 20940768048.

The previous prime is 21235050413. The next prime is 21235050457. The reversal of 21235050433 is 33405053212.

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 21235050433 - 2²¹ = 21232953281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21235050413) 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, 491941 + ... + 533362.

It is an arithmetic number, because the mean of its divisors is an integer number (2691423000).

Almost surely, 2^21235050433 is an apocalyptic number.

It is an amenable number.

21235050433 is a deficient number, since it is larger than the sum of its proper divisors (296333567).

21235050433 is a wasteful number, since it uses less digits than its factorization.

21235050433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025591.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 21235050433 in words is "twenty-one billion, two hundred thirty-five million, fifty thousand, four hundred thirty-three".